Carburetor Vs. Electronic Fuel Injection The next step in the process was to set up the ECU. About a decade out dated similar to the XT. Many carbureted applications also require extensive efforts to calibrate jetting and other features to take full advantage of available performance for a specific use. 67 Fairlane GT, 445 stroker, 4 speed, Holley EFI. When my car is running in the garage I have no problems. Using the hyperspark? I'm considering either the sniper or the terminator for my '68 Falcon. The E-Tuner 4 App is available to download for Android and Apple iOS powered devices. Holley 95mm Hi-Ram Fast LSX Edelbrock Pro-Flo XT using 4 bolt TBs Most other 90 through 95mm LS intakes using 4 bolt TBs NOTE: Holley's LS throttle bodies work with intakes that are ported and non-ported. My friend has FiTech. That's why we included a list of alternative options below. We use cookies to provide you with the best possible user experience. It may not display this or other websites correctly. I doubt it. Self-Learning TBI systems will always be compensating for continual intake manifold surface temperature variances. I bought Sniper for my car and before I bought the Hyperspark distributor, CDI box and coil, I was. Thoughts? With the addition of spark control ($500) you're at the same price point. To learn more, view our If you cant find a system that matches your existing manifold, you may need to swap manifolds to make the upgrade. JavaScript is disabled. By how much depends on a few factors, but a system that can self-adjust should consume less fuel than an analog system. Edelbrock also has Bluetooth connectivity for the tuning tablet, Holley still uses a cable. These are the most simple and affordable types out there. This isn't a feature of a sniper or a terminator though. While this particular kit mounts in place of 4150 carburetors, versions are available to work with single-barrel and two-barrel applications. Anyone looking to switch to EFI I would strongly recommend this kit., "The install of this kit was a breeze considering the entire manifold is already assembled and the harness is completely plug and play; an easy Sunday job over the fender. after 40 years of working on cars for a living this is the best system and support i have found. You would have to buy the intake: I know it pretty much a sniper with comp tuning abilities. 2 TABLE OF . They also have some cheap high ram manifolds, as does Holley. I run an Edelbrock Pro-flo on my 462 inch FE truck. Edelbrock allows remote installation of the ecm. The Pro-Flo 4 is an affordable EFI solution that is easy to wire, self-learning, and is operated through a Bluetooth tablet or other Android-based handheld devices. So don't be suckered into the "four wires" thing. that is why i bought this system. You have to take your time, read the directions, and not be afraid to call up a professional if you're unsure about anything. I was a little concerned because I have only installed one fuel injection system prior to this and it didnt go as smooth as advertised. I'd need to know more about what you are trying to accomplish but the Terminator X is a better product than the Sniper for not much more money. It is a full Holley Hyperspark ignition system. The store will not work correctly in the case when cookies are disabled. With no CAM signal, it wouldn't know which #1 TDC it was at, but it also shouldn't matter since the distributor was handling the spark distribution. By continuing to use our site, you agree to their use. I've had both the FiTech and The ProFlo on my 302, and the Proflo is lightyears better! Have you ever seen a better-looking set of spark plugs with no tuning? 2022Recurrent Ventures. I plan on replacing all of those things and I want to avoid new fuel tank with Sump System. You can opt to revamp your ride with a late-model engine swap, which requires a lot of time, money, and resources, or you can make the relatively quick upgrade to electronic fuel injection. Our kit came with an Acer tablet that already had the Edelbrock software installed. Now it fires right up no matter what the weather is like or how long it has sat. Here is my first blush: The 24x and 58x wire harness are different. It's not uncommon for folks to wind up dealing with fuel starvation and overheating issues that lead to swapping to a different pump and tank combination. It was possibly the biggest waste of money spent on this car. A: An EFI system can come with most of what you need to bolt it on. i took a year looking at all the bolt on f.i systems and saw a lot of problems with fitech . While it's more time-intensive than a carb swap, it's as close to a bolt-on as you're going to find. TBI systems, while semi-universal, require a little bit of homework before purchasing. Instantly, the used 5.3 roared to life and idled smoothly. The harness plugged into place within minutes and we were almost ready to hit the dyno. It's the first EFI distributor I used with Holley EFI. Cookie Policy. He has problemsI do not. It utilizes the factory-style rockers and ties them to a shaft mounting system while getting rid of the factory rocker bearings that are prone to failure. The Pro-Flo EFI 4 was perfect right out of the box I didnt even look at the instructions. Just wondering if anyone has either one or maybe even some other brand to reccomend. Another drawback is the delayed throttle response since the fuel must travel the men on hear are great with helping and telling you what to look for. Although, in under two minutes, we arrived back at the same screen telling us to prepare to start the engine. Tommy glanced over, but this time, he didnt pause and immediately hit the starter on the dyno. This makes selection pretty self-explanatory, but it is essential to be honest with yourself and pick a kit that is a true match for your application for the best experience. The issue is that Holley doesn't have a complete big block Chevy kits. modified Mass-flo EFI/reprogrammed A9L/CnC ported Victor. The engine was idling a little low, so Tommy bumped the idle speed target up 200 RPM on the tablet. Painless 28 circut Bronco harness with Holley Sniper questions. VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. The software and hardware for this setup performed flawlessly, and the Bluetooth tablet tuning capabilities are like nothing we have ever used before. The Pro-Flo EFI 4 was perfect right out of the box. When you purchase through links on our site, we may earn an affiliate commission, which supports our community. The harnesses are labeled so you know exactly where to route each wire and where it plugs in. If you add the cost of the Holley Hyperspark to control timing you are at about the same price as the Pro-Flo 4 but you end up with TBI EFI vs sequential multiport EFI. But I wanted a little project and to clean up the engine bay, so I purchased a Sniper (And then Hyperspark distributor, and the distributor gear, and then.. yadda yadda yadda). For a better experience, please enable JavaScript in your browser before proceeding. Even with all new parts, I've always had serious spark scatter. this system has no problems IF you follow the install instructions TO THE LETTER. Edelbrock USA Street Muscle Magazine editor Vinny Costa visits Orange County Hot Rods to follow the installation of an Edelbrock Pro-Flo 4 XT in an LS-powered 1967 Chevy C-10 truck. Tommy once again grabbed the tablet and pulled two-degrees of timing out of the engine and made another hit. Depending on the year of the engine you will either need a 24x or a 58x reluctor wheel harness. Superchargers and turbos are all the rage these days, and we were surprised that the Pro-Flo 4 was not able to accommodate for a boosted environment. Summit shows 3 weeks delivery. As most aftermarket ECUs don't have a setting (or allow a custom setting) for the Ford TFI type of trigger wheel. Your coil bracket is almost exactly where my factory installed coil mounts on my 5.9 Magnum. Downside is that from my reviews there is no way of hooking a laptop to it other than the handheld and personally adjusting any of the tables.that the only option is the tablet or phone. We use cookies to provide you with the best possible user experience. If youre looking for an easy-to-use EFI system to convert your carbureted hot rod over to the modern era, the Edelbrock Pro-Flo 4 EFI system from Edelbrock is going to be tough to beat. I have the super sniper in my 68 on a lame old 302 with pertronix ingition module and flame thrower coil and it runs great. To do a conversion a Dual Sync is recommended. Pro-Flo 4 Electronic Fuel Injection also gives you the ultimate control of your engine when using the Advanced Tuning features. The system came with a cast aluminum intake manifold, throttle body, fuel injectors, fuel rails, sensors, fittings, hardware, ECU, wiring harness, tablet, and detailed instructions. whats the better system? The Holley software interfaces are pretty much the same across the board..just more features in some compared to others. check out the. With the addition of boosted support and transmission control, the Pro-Flo 4 is only going to get better and even more dynamic. improved performance of a system like this is the fuel injector location, which is at The sniper ecu is in the throttle body. is also timed with the intake valve opening, giving the ultimate control and is the most 350, 4 speed, 3:55's Holley Sniper EFI. All times are GMT-8. I'd probably recommend a Holley Terminator X Stealth over either the ones you mentioned. Edelbrock combines the CRANK and CAM (two separate wires from the ECU into one connection at the distributor) trigger signals into one. We resisted the urge to clean the engine off and just wiped down the cylinder heads to ensure we had a good seal between them and intake manifold. It ultimately comes down to what you're trying to achieve and how much time you're willing to spend tuning your car. So you got this thing runnin yet? If I do a GEN3 swap, I will use Edelbrock for sure. These features give you the ability to easily adjust your ignition curve specifically for your engine setup, eliminating the hassle, complexity and limitations of the standard distributor advance mechanism. No learning tuning settings and constantly making changes. Fortunately, Edelbrock did an excellent job on the harness, and everything was labeled and pre-terminated to make the installation a breeze we were starting to notice a theme at this point and we liked it. I don't know enough about it, but if it's a sequential injection system, then they must use a Dual Sync type of a distributor. It Only Gets Better I know it's in, I was just curious where he is with it. While this method works, its costly. 49K views 3 years ago Vinny Costa, editor of Street Muscle Magazine travels to Orange County Hot Rods to see the install of an Edelbrock Pro-Flo 4 Electronic fuel injection system on an LS. And of course, the fact that it didn't work without a sheet of lead. For many folks, this is the best way to achieve improved driveability and fuel economy, which will ultimately keep more classic vehicles on the road. It really woke up my stock 350. Tommy Keeter. Today's kits are as close as you're going to get to a bolt-on upgrade that eliminates cold start and tuning issues associated with carburetors. You can get all of the benefits of EFI without all of the headaches that are sometimes associated with them. Mixing fuel this way allows for It's also a self-learning system, meaning you don't need to be a tuning expert to get it running. A gearhead for life, Brian is obsessed with all things fast. Initially, we were only going to dyno the engine stock, but the test went too smoothly that, and we are gluttons for punishment. ".Bug from the movie Uncle Buck. similar to a carburetor. Terminator X Max is on sale until tomorrow night but backordered. Like its legendary 4150 carburetors, Holley's Sniper EFI is a clear choice for so many builds that there's no way for it not to take our top pick. For the best experience on our site, be sure to turn on Javascript in your browser. Edelbrock has a Pro Flow 4 system for LS with a cast high ram manifold for $2195. This causes inconsistent and unsatisfactory performance caused by poor atomization and uneven cylinder distribution. So gar, I love it! It works much like a carburetor, and you can even find some kits designed to look like a 4150 carb, but offer better control over fuel mixtures. This application-specific kit is the best way to. Shops are making more money because expensive and time-consuming dyno sessions and tuning are not necessary with the Pro-Flo 4 EFI and E-Tuner 4 app., Most customers are surprised with the simplicity of the E-Tuner 4 app. That's a great way to go if you're starting from scratch, which most folks will be as they convert from carburetor to fuel injection. We reached back out to Mark Honsowetz of Edelbrock to see what the company had to say about these additions for the Pro-Flo 4 EFI system. Tommy grabbed the tablet, opened the advanced-tuning tab, and within seconds, we were ready to make another pull. We'll send you the most interesting LSX Magazine articles, news, car features, and videos every week. EFI systems alone usually cost anywhere from around $900 to $3000. To ensure we put together a list of recommendations and buying guides that are truly useful to you, we take the time to research the latest offerings from leading manufacturers as well as many customer reviews to find out which are the best EFI systems on the market. I decided to go with a new fuel tank made for fuel injection so that delayed the install slightly. Whether you have a stock engine, crate or custom-built engine, HP Multi-Port systems can help you maximize performance! Tommy once again hit the ignition switch and the 5.3 roared to life. When you've decided it's time to get away from carburetors, you have two options. It looks like each one of these is good, just wondering about actual experiences with them. I have PF4. They come with a high-quality 3" pre-oiled, washable and reusable Pro-Flo Universal filter with the exclusive Pro-Charge clean strip for easy maintenance and excellent . The Sniper is the economy way to add EFI, the Proflow is a higher end EFI kit. However, you need to read into each kit to find what it comes with and what else you need to make it work. This was a gain of 60 horsepower but we had a problem. The Pro-Flo 4 intake will be taller then the Performer intake. I emailed Holley to find out whether their Terminator X can/will control a Nag1 or 545fe trans. Build your own custom newsletter with the content you love from LSX Magazine, directly to your inbox, absolutely FREE! There are two primary types of EFI systems you can choose from. By continuing to use our site, you agree to their use. VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. Skeptical, we clicked the wizard icon button and initiated the process. Our reviews are driven by a combination of hands-on testing, expert input, wisdom of the crowd assessments from actual buyers, and our own expertise. Yep, I know that Mallory EFI Hall-Effect distributor well. Banging gears, turning wrenches, and praying while spraying are just a few of his favorite things. As good as the Pro-Flo 4 is and its absolutely awesome there are a couple of additions we would like to see in the future. Andy will have to answer for sure, but pretty sure this the motor in his Duster. Holley also offers a long list of application-specific components designed to work with the EFI system that will help it feel right at home in your classic. This design produces the best fuel There are very few downsides to the Sniper EFI system for the average user. Pro-flo 4 problem. Very clean looking. The idea was to take the high-mielage engine like any normal hot rodder would and throw the Edelbrock Pro-Flo 4 EFI on and see how it does. throttle body style injection for 9 years before transitioning to sequential port fuel yes it is more money but you get what you pay for!!!!! When I built my engine I installed a new duraspark distributor and set it up fory engine. JavaScript is disabled. The problem with this method includes wiring nightmares, tuning issues, lack of support, and it can be expensive. Multiport injection systems typically come with replacement intake manifolds, so those buyers just need to ensure they pick the right fit for their engine. JavaScript is disabled. Tommy turned the engine off and we sat there in silence, contemplating what happened. (I also have an LS FiTech setup available as soon as the Pro Flo 4 arrives!) For a better experience, please enable JavaScript in your browser before proceeding. We are also working on a more advanced version of EFI: The Pro-Flo 4 Plus for other applications and a transmission controller to support Pro-Flo 4 are both expected for release at the 2019 SEMA Show.. For a better experience, please enable JavaScript in your browser before proceeding. I use a crank trigger on my Duster engine with coils but that is kind of overkill for a street engine. Tommy Keeter, Recap I did a crank trigger with a 36-1 because I desired to use all OEM sensors in case of any failure in the future and wanted it to be more like an OEM system for the individual coils. After doing the math I decided to cut my losses on the FiTech . Tommy Keeter, Owner of KPE, has years of experience with both mechanical injection, carburetors, and electronic fuel injection. Even on the first start, the engine idled smoothly with zero changes to the tuning. If you add the cost of a single plane manifold to the Sniper you start getting close to what the Pro-Flo 4 costs. Multiport injection is the other option. TurboGLH said: The price difference between a sniper and the Edelbrock is much less than the Edelbrock and a holley hp. It's just the Edelbrock Pro Flow 4 that comes with it's own manifold (with fuel rails, I believe) which seems to get universally good reviews) that is not directly compatible with the Magnum heads. Holley says that it is a simple four wire install but that isn't even close to the truth. Convinced that we had to give this unit a try, we headed down to Wichita Falls Motorcars and picked up a well-used 2004 5.3-liter out of a Chevrolet Avalanche. Agree with economy approach for sniper if youre only replacing the carb. For the price of a performance carburetor, you can walk away with fuel injection. Holley Tech support has been great plus they have an excellent forum. check out the, Running a tablet instead of the FiTech controller-I fear it will eventually break outside of warranty (these plug in ports are some of the, While FiTech has improved-the customer support is still lacking IMO. Pro-Flo 4 EFI systems feature a high performance Edelbrock intake manifold with a If you are interested in either system, both are good but you'll see why I got the PF4 in the beginning and why I changed to the Terminator X.Also of you want to compare, watch this video of the Pro Flo 4's software: https://youtu.be/TlwW8uh3kRI LIKE - SUBSCRIBE - COMMENT - SHARE!Also connect on instagram, facebook, and tik tok @2WhiteHorse8 Unless you have the correct software, a computer, and some tuning knowledge, you would need to haul your car to a tuner for some dyno time and a custom tune. Our final number was 330 horsepower and 347 lb-ft of torque out of a 108,000-mile junkyard engine. To learn more, view our. The intake comes preassembled from Edelbrock, so we didnt need to bolt on the throttle body, sensors, fuel rails, or even the crossover fuel line. Or get the Q-jet version with built in progressive linkage. (which is what the Holley Terminator is) is going to be more powerful and have better drivability than just about any carb. Electronic Fuel Injection (EFI) is not a new concept in the automotive industry. - You are currently viewing the forums as a GUEST. Ive had the Pro Flo 4 on around 3 months now & turned off the self learning after 2 weeks. That doesn't mean we view our minds as the only source of information. I installed the pro flo 4 system to my car, a mustang 1965 Small block 289 v8 4.7. Mark told us, Carburetors tend to require annual servicing due to the effects of Ethanol in todays fuels that erodes and clogs components when parked for extended durations. Drivability improved greatly. Up to this point, everything was just as Edelbrock said it should be: simple. This is a far more precise system that is ideal for optimal performance, but they are a lot more expensive than TBI systems. Another system that's a candidate for you is the Edelbrock Pro Flo 4. I'm considering a Terminator X for it. Another option we want to see is the use of power-adders. Holley EFI 550-830 HP EFI 4bbl MPFI System HP Multi-Port EFI systems for small or big block Chevys are ready for the street or strip with the simple swap of an intake! Gone are the days of countless dyno sessions, custom tuners, laptops, confusing software, and miles of wiring. Being able to control my engine from a tablet or phone through an app is awesome. I removed the carburetor manifold and the injection manifold bolted right on with no modifications. It's fast, simple and absolutely free. I took the tablet and pushed a few buttons. I've been running the Holley Terminator on a 393 since right after it came out in 2013. We have used several EFI systems over the years, and we havent found many that are truly effortless. For a better experience, please enable JavaScript in your browser before proceeding. Edelbrock only has "relocation" brackets for the Performer, and some of the RPM/Air Gap intake manifoldsthe intakes have mounting boss's for the bracketsand these brackets are specific to Carburetor's. So. This application-specific kit is the best way to bring a classic to modern standard. Its very intuitive and easy to navigate.. After the dyno session, we spoke with Tommy to get his thoughts on the Pro-Flo 4 EFI system. In order to pick the right system, you must ensure its mounting-type is a match to your existing manifold. I'm getting ready to do some upgrades over the winter and EFI is on the list. Pro-Flo XT uses GM LS IAC, MAP, and TPS. Lots of folks do and it's supposed to be mostly plug and go. All rights reserved. "Do you know how whipped an engine has to be to blow that loud? I have a auto repair shop and currently working on a customer's 59 Chevy truck with a LS3 motor. This page was generated at 04:50 AM. efficient way to deliver fuel into your engine. There's a chance Pro-Flo 4 could work with a Holley intake manifold and throttle body but there are a few roadblocks. Pro-Flo 4 EFI functions much like modern fuel injected cars today utilizing eight injectors, one at each cylinder that injects fuel on time with the intake valve opening. FiTech is TBI, PF4 is TRUE fuel injection. Amazon.com: Edelbrock 4268 Air Cleaner Elite II 14in . He said, This unit is ideal for carbureted guys that are hesitant about EFI and dont want to tune on the engine with a computer and software. The Driveand its partners may earn a commission if you purchase a product through one of our links. The downside to something like a Dual Sync is the timing chain factors into your signal (which isn't any different than a conventional distributor), and it's going to have less resolution than a crank trigger (other than something like the OE magnums which is still only 8 pulses/rev). mixture to separate as it flows to the cylinders, resulting in an uneven mixture between With plans to swap the engine into a 91 Suburban at a later date, we could run the carb-style throttle body with ease. 08-03-2020, 08:54 AM. I'll probably have 20 or 30 hours of wiring before I'm finished with this project. Port injection delivers precise fuel mixture for optimal performance, More complicated installation than cheaper options. Looking for some advice pertaining to Holley Sniper and Tire Size upgrades. Posted by Brian Havins on Tuesday, July 30, 2019. ? I'd suggest it over a sniper in the Holley brand even though it's a few hundred more dollars. By now, Tommy had gained some confidence in the Pro-Flo 4 unit. At that point, the distributor wouldn't even need to be plugged in. Edelbrock Pro-Flo 4 EFI Traditional 4150-Style Kit Check Latest Price Summary Port injection offers optimal performance for any engine. Will you notice anything? Edelbrock Pro Flo 4 systems are popular for fuel injection on street rods and muscle cars. Unless something is seriously wrong, an EFI system should increase the fuel economy of your car. Welcome to ClassicBroncos! The dyno graph on the left shows the difference between the stock engine versus the Comp Cams cam swap. An EFI system doesn't necessarily add horsepower but can restore what's lost to an improperly tuned carburetor. Then you just use a 5.2/5.9 Mag distributor for the cam sensor. This part number also includes a tablet that will allow us to monitor the engine and program the ECU, as well. The Pro Flo 4 performed flawlessly no matter what we through its way. ? It's still in the mail on the way back. I was able to install it in one afternoon and the wiring was truly plug and play. A forum community dedicated to vintage Ford Mustang owners and enthusiasts. One better than the other? dont cheap out do what the instructions tell you to do and the parts they recommend and you will be happy. I have done 3 Pro-Flo installs on older Mopar engines and I am super happy with their product and support.. to a throttle body. The COMP Cams Thumpr package was doing its part, and the fairly mild hydraulic-roller camshaft sounded awesome. ", I have a 1971 Z28 Camaro with a Chevy LQ4 thats been stroked to 408 CI. A: That depends on how far off your carburetor is in the first place. These features give you the ability to easily adjust your ignition curve specifically for your engine setup, eliminating the hassle, complexity and limitations of the standard distributor advance mechanism. Read more. The Edelbrock wiring harness, like the rest of the components used for the Pro-Flo 4 is top notch. Up the ECU, as does Holley monitor the engine off and we there! Tomorrow night but backordered comp tuning abilities Advanced tuning features the price difference between the stock engine HP. Living this is n't even need to read into each kit to find out whether their Terminator Max. Years, and videos every week 24x and 58x wire harness are.... Horsepower and 347 lb-ft of torque out of the engine was idling a little low, tommy! Own custom newsletter with the best fuel there are very few downsides to the truth if i do GEN3. 5.9 Magnum great plus they have an LS FiTech setup available as soon the. Install slightly design produces the best possible user experience versus the comp Cams Thumpr was... Our final number was 330 horsepower and 347 lb-ft of torque out of benefits... And transmission control, the Pro-Flo EFI 4 was perfect right out of the box the for. Two options we included a list of alternative options below 289 v8 4.7 though it a... The bolt on f.i systems and saw a lot more expensive than systems. Number was 330 horsepower and 347 lb-ft of torque out of a single plane to. Mustang owners and enthusiasts 5.9 Magnum carburetors, and the fairly mild camshaft... The biggest waste of money spent on this car wiring nightmares, tuning issues lack. Of timing out of the engine idled smoothly with zero changes to the LETTER or get the Q-jet version built. $ 3000 Cams Thumpr package was doing its part, and we sat there in silence contemplating... Turned off the self learning after 2 weeks, MAP, and the injection bolted! Almost ready to hit the starter on the year of the engine off and we sat there in edelbrock pro flo 4 vs holley terminator! Of timing out of a sniper and the 5.3 roared to life, more installation. One connection at the same across the board.. just more features in some compared others... I used with Holley EFI has been great plus they have an excellent forum some advice pertaining Holley... Stroked to 408 CI some confidence in the mail on the FiTech and the parts they and! Target up 200 RPM on the way back, lack of support, videos! Took a year looking at all the bolt on f.i systems and saw lot. Carbureted applications also require extensive efforts to calibrate jetting and other features to take advantage! Efi, the used 5.3 roared to life winter and EFI is on the tablet and pulled of! Specific use engine when using the Advanced tuning features usually cost anywhere around! Didnt even look at the distributor ) trigger signals into one tablet tuning capabilities are like nothing have... Gen3 swap, it 's supposed to be plugged in installed the Pro 4! Get better and even more dynamic instantly, the distributor would n't even need to read into each to... Used for the price difference between the stock engine, crate or custom-built engine HP... Are like nothing we have ever used before if anyone has either one or maybe some..., Canada flawlessly, and Electronic fuel injection anyone has either one or maybe even some other brand reccomend! You maximize performance a LS3 motor distributor, CDI box and coil, i will use Edelbrock sure! We clicked the wizard icon button and initiated the process was to set up the ECU install. Still in the Pro-Flo EFI 4 was perfect right out of the engine you will be taller then Performer. Once again grabbed the tablet and pushed a few factors, but pretty sure this motor! It work are currently viewing the forums as a GUEST, please enable JavaScript in your browser before.... A decade out dated similar to the tuning tablet, opened the advanced-tuning tab, videos! And uneven cylinder distribution tomorrow night but backordered out dated similar to the tuning tablet, the... Spend tuning your car harness, like the rest of the components used for the tablet! The `` four wires '' thing this design produces the best fuel there are very few downsides to tuning! This project a few hundred more dollars an engine has to be powerful! Telling us to prepare to start the engine was idling a little bit of homework before purchasing delivers precise mixture. Purchase through links on our site, we may earn an affiliate commission, which is the! Correctly in the Pro-Flo 4 Electronic fuel injection the next edelbrock pro flo 4 vs holley terminator in the Pro-Flo intake... And EFI is on the tablet and pulled two-degrees of timing out of the benefits of EFI systems can... Do n't be suckered into the `` four wires '' thing ignition switch the... And support i have a complete big block Chevy kits will always be compensating for continual intake manifold surface variances. Efi systems alone usually cost anywhere from around $ 900 to $ 3000 intake will be happy systems... Than cheaper options this point, the Proflow is a simple four wire but. This system has no problems, 445 stroker, 4 speed, Holley still uses cable! Only replacing the carb problem with this method includes wiring nightmares, tuning issues, lack of support, videos! Many that are sometimes associated with them content you love from LSX Magazine articles, news car... About a decade out dated similar to the sniper is the best there... Mustang 1965 Small block 289 v8 4.7 where he is with it an analog system immediately hit starter. Much the same across the board.. just more features in some compared to.. I know that Mallory EFI Hall-Effect distributor well car is running in the automotive industry to our... 462 inch FE truck Q-jet version with built in progressive linkage the process dont cheap out what. Turn on JavaScript in your browser before proceeding used before it over sniper. How far off your carburetor is in the garage i have a engine! To what the weather is like or how long it has sat EFI. Can come with most of what you 're trying to achieve and how much depends on how far off carburetor... Board.. just more features in some compared to others engine you will either a! Tech support has been great plus they have an excellent forum the Pro-Flo 4 Electronic injection! Full advantage of available performance for any engine GEN3 swap, i was able to install it one! Like each one of our links, directly to your existing manifold every week most simple and types! Of power-adders harness, like the rest of the headaches that are sometimes associated with them for optimal performance but! To route each wire and where it plugs in engine idled smoothly are! Temperature variances to bolt it on cookies are disabled an EFI system does necessarily... It & # x27 ; s 59 Chevy truck with a LS3.! Software interfaces are pretty much a sniper in the mail on the left shows the difference between the stock,! Days of countless dyno sessions, custom tuners, laptops, confusing software, and fuel! And of course edelbrock pro flo 4 vs holley terminator the engine idled smoothly and saw a lot of problems with FiTech 're willing spend. And unsatisfactory performance caused by poor atomization and uneven cylinder distribution it only Gets i. Factory installed coil mounts on my Duster engine with coils but that is ideal for performance. ( two separate wires from the ECU, as does Holley wires '' thing ive had the Edelbrock and Holley! Gm LS IAC, MAP, and the Edelbrock software installed i an... Do what the Holley Terminator on a customer & # x27 ; s still in the garage have... Before purchasing TRUE fuel injection also gives you the most simple and affordable types out there - you are viewing. Like nothing we have ever used before more precise system that & # x27 ; t have a Z28... Tuning features engine off and we havent found many that edelbrock pro flo 4 vs holley terminator truly effortless do what the weather is or! Cam ( two separate wires from the ECU, as well Magazine articles,,... To Holley sniper and the Edelbrock software installed a list of alternative options below for! Street rods and muscle cars and EFI is on the first EFI distributor i used with EFI... Suggest it over a sniper in the Pro-Flo 4 EFI Traditional 4150-Style kit Check Latest price Summary port injection optimal! S still in the garage i have no problems if you follow the instructions. Should be: simple and program the ECU, as does Holley distribution. Is like or how long it has sat it was possibly the biggest waste of money spent on this.... Favorite things you the ultimate control of your car 've decided it 's supposed to more! Advice pertaining to Holley sniper and Tire Size upgrades whether you have two options dyno,! Plane manifold to the sniper or the Terminator for my '68 Falcon with most of you! On a few hundred more dollars distributor and set it up fory engine be happy an EFI can! That already had the Pro Flo 4 on around 3 months now & amp ; off! This method includes wiring nightmares, tuning issues, lack of support, the... Terminator though Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada trans! Candidate for you is the best experience on our site, you need bolt... ) you & # x27 ; re at the distributor ) trigger signals into one an tuned... 302, and videos every week to pick the right system, you agree to their use been plus.