EFI 8-Stack V8 Systems

Multiple styles of EFI

Why buy it here?

We understand that converting to an 8-stack EFI can be a scary project for the first-time EFI buyer who knows nothing about EFI.  For that reason, every one of our units is shipped "ready to install".  You can take it out of the box and bolt it on, allowing you to focus on the startup, not prepping the assembly.  That’s our job. 

Everything is tagged and labeled for you, and we provide a comprehensive set of instructions to guide you through your first tune.  Our instruction package covers every aspect of the EFI setup process, including the ignition system.

Too many companies are focused more on sales than support after the sale. I have an obligation to ensure that every installation is a complete success.  You can call me for help if you need it, but if you require more in-depth tuning or troubleshooting, I’m teamed-up with Andy Starr of Starr Performance and Consulting to put you in the hands of a professional EFI tuner if you need one. Andy can help identify the source of any problem, set up your base calibration, or provide remote or on-site tuning of your EFI.  His prices are in line with the same rates you'd pay a tuning center, but you won't have to bring your car  anywhere.  You'll find Andy to be a really great guy to work with.  Here's the link to his site:  https://starrperformancetuning.com/

Our EFI packages can be supplied with everything you need, including the ECM and EFI fuel pump.  We also supply EFI ignition systems.  With EFI, the ignition is an important component so when you call, we'll discuss the ignition you currently have and decide if there is anything else you need.  There is no need for you to search for those parts elsewhere, and you'll find our prices are the same as at Summit or Jeg’s.  We are an all-inclusive supplier.

Our fuel injection systems are offered in two distinctly different styles.  If you prefer the look of a classic Weber carburetion system, we have an EFI that looks just like Weber carburetors with hidden injectors and conventional fuel lines (instead of fuel rails common to EFI's).  Our Weber-style EFI’s are so close in appearance to actual Weber carburetors that it’s almost impossible to tell the difference. I take a lot of pride in the attention to the detail of these Weber-style EFI units. We even attach our own faux Weber I.D. plates. Only the sharpest eye can detect the difference between our Weber EFI’s and Weber carburetors.

Here’s a side-by-side comparison showing our Weber carburetion system next to our “Weber” EFI. Can YOU tell which is which?

A closer look shows our Weber EFI on the right uses real Weber jet cover screens and the same type of fuel lines, carburetor screws, and brass top plugs as the Weber carburetors at the left.  The only major giveaway is the lack of auxilliary venturi tubes inside the stacks on the EFI...but with a set of debris screens fitted inside the stacks, that missing detail disappears.

Extra detail is standard here.

My goal has always been to lead the industry in any way possible and to set my product apart from that of my competitors.  To achieve that, our standard is excellence, and we try to exceed customer expectations in any way possible.

All of our conventional EFI's include polished air horns and fuel rails.  For ultra-show cars, we also offer full show polishing to make the aluminum look just like chrome.  

The smallest details matter most here.  I attach my label to each unit myself, and I only attach that label to an assembly when I've performed the final inspection myself.  


State of the Art EFI

If you prefer the modern look of a state-of-the-art EFI system, our throttle bodies are the most beautiful in the industry.  The unique threaded-in air horns completely eliminate the use of any screws for an exceptionally sleek and clean outer appearance.

We offer EFI systems for all the popular GM early engines and LS series, Ford 302, 351W, 351C, 427/428 FE, the Ford SOHC Cammer, Ford Coyote engines.   The Chevrolet EFI's are available for smallblock, bigblock, and LS1, LS2, LS3, LS6, and LS7 engines. 

Every EFI is custom built to order.  If it's your first EFI system, I can supply a 100% complete package with everything you’ll need, starting with the right ECU for your specific application, a fuel pump, regulator, ignition, and every sensor required.

The photo above shows a smallblock Chevy conventional-type EFI with bright ceramic coated manifold and black throttle bodies, which are both popular options.  We can paint your throttle bodies in any color you wish.  Just supply us the paint code.

All sensors are tagged

Weber EFI details

Other EFI companies may leave it up to you to round up all the sensors you'll need or they may supply them separately, requiring you to mount them. When your EFI assembly arrives from our shop, all sensors are mounted and labeled for you.  We don't want you to figure out how to mount or identify any sensors. Our one goal is to make every installation a simple process whether you're an EFI beginner or a seasoned installer.   

Our instructions provide all the information you'll need for setting up your EFI.  It may surprise you to know that some EFI suppliers don't supply ANY instructions.  My intention is always to make setting up your first tune as easy as I can for you. 

If you're building a GT40 or a Cobra, we know authenticity is important to you.   Our Weber-style throttle bodies now include our own "pseudo" factory I.D. plates for an even higher level of detail.  These are exact copies of the I.D. plates that were on the earliest Weber downdrafts.  If you blow-up the photo on the right, you can see how authentic these I.D.tags are.  Also notice that we install genuine factory Weber jet cover screens between the stacks.  These are some of the details that set our assemblies apart.


I’ll put you into whatever engine control unit is best for your specific application. ECU technology is changing constantly and I do my best to keep changing with it.  I supply and support Holley controllers because of their advanced technology and ease of use in comparison with all the others. 

The right ECU is the key to any successful EFI installation.  For instance, there are ECU’s made specifically for LS engines. and Coyote engines.  These require very specific controls and the year of the engine sometimes makes a difference in which ECU to select.  Sometimes there are different ECU's for different year engines.  

In this industry, some ECU’s are self-learning; others aren’t.  Some require a laptop and some don’t.  I automatically assume you don't know anything about EFI's and that you'd probably like a self-tuning ECU with its own hand-held touch screen that leads you through the setup.  That's the Holley Terminator X.

If you have an electronically controlled transmission, I'll provide you with an ECU that includes transmission control, or you may need a separate trans controller.  I also sell a variety of fuel EFI pumps depending on what your application is. 

I get asked about ignitions and distributors all the time.   If you need me to select an ignition for your engine, I'll be happy to supply the matched components for a complete Dual Sync digital ignition package for your engine, including distributor, ignition box, coil, and wires. 

Another goal here is to also be the most customer-friendly EFI supplier in the business, so if I can supply everything you need with one phone call, I'm glad to do that.

I will stress again that all our EFI assemblies are shipped “ready for installation”.  We focus on making every EFI package the most user-friendly and most complete EFI available anywhere. Please keep this in mind if you're pricing others, and be sure to ask if theirs come with every sensor properly mounted and labeled for you.  It's an added-value feature, especially if you've never done this before. 


Our typical V8 eight-stack fuel injection packages come in at around $7000 including the computer and fuel pump, but individual pricing varies on each unit.  Each EFI package is tailored to order, and the component packages can vary.  For exact pricing, it's best to call or email me for an accurate price quote. If you email me, I will usually get back to you that same day.

Some of Our Ford Offerings Are Shown Below

Ford 427 Cammer

As a Ford EFI specialty shop, we’re proud to be the only source for a Ford 427 SOHC cammer EFI.  This EFI is the ultimate induction system for a cammer. We use 58mm throttle bodies and 64 lb Bosche injectors to support 960 hp (one of our customers acheived 966 hp at the flywheel / 865hp at the rear wheels with this EFI).

The price is $7900.00 as shown, shipped ready to install.  These come with everything, including fuel rails, fuel pressure regulator, and all sensors, which are tagged for you on all units.  ***Note:  The cammer manifolds are in very limited supply.

Ford 302

Conventional 302 EFI with plain finish throttle bodies and short air horns.

427 Ford FE / Weber

427 Ford FE with Weber style throttle bodies in standard finishes and ceramic coated manifold.   This was an earlier photo before we started having the Weber I.D. plates made.  Now all the FE's have them, as seen in the 351C photo above.                                            

Ford Coyote

Ford Coyote engines can be outfitted with Weber-style throttle bodies to give a vintage look to a state-of-the art engine.   This one is the 10-degree angled version.  We also offer it on a straight vertical manifold.                          

429-460 Ford

Ford 460 EFI in gloss black.

The 351 Cleveland is BACK!

The 351C manifold went out of production a while back, and now, after a long hiatus, we are finally able to offer it again.  Our new 351C manifolds are much improved to include a collective vacuum chamber that enables us to build either Weber carburetion or EFI.  And this new version comes in either a 2-barrel or 4-barrel port configuration.  This manifold is only available with Weber-type throttle bodies, making it an ideal choice for Panteras, such as the Pantera EFI shown here.

Ford 351W

Fully polished 351W EFI with Weber style throttle bodies.  The 351W can be ordered with conventional throttles like the 302 shown at above left.  This one is shown in fully polished finishes, built for Gary Rajcock.  This rear view gives shows how we mount the accessories for you...pressure regulator, map sensor, IAC, and TPS can be seen in their places.

427 Ford FE with 58mm throttle bodies

The Ford 427FE conventional EFI is shown here.  These come with huge 58mm throttle bodies and it's one of our lowest-profile assemblies.  Look closely and you'll see this manifold also has nitrous oxide.  If you want your EFI with NOS, let us know.  This unit can produce 750 horsepower on a stroked FE. 

Here's a better look at the NOS lines.  On an EFI, only one set of injectors is needed to deliver the nitrous.  When the NOS button is pushed, the EFI's computer delivers the extra fuel through the fuel injection unit. With just 8 lines, there is much less clutter.

GT40 and Daytona Coupe turkey pan option

GT40 and Cobra applications have always been our specialty with their various linkage requirements and other specific details unique only to those cars.  If you have a GT40 or a Cobra Daytona Coupe, then you may want your smallblock Ford Weber EFI (or carburetors) supplied with a "turkey pan" as you see here.  The assembly shown above replicates the original package as it appeared on the 1965 GT40 race cars.  The reversion plate on top (not shown) is also an option.

As mentioned above, the Coyote units come in both vertical and 10-degree configurations.  Shown here is our base Coyote EFI vertical unit in natural finishes with air horns not yet installed.  There are various lengths of air horns available. 

A fully polished Ford Coyote EFI system built for Roderick Baker’s ’56 Ford pickup in Illinois, built by Riddler Award car builder Tim O'Connell. This one has taller air horns than the standard 50mm.

Chevrolet EFI Systems

Our Chevrolet EFI offerings range from the standard smallblock and bigblock Chevy engines to the LS series, with manifolds for LS-1, LS-2, LS-3, and LS-6.

Our base Bigblock Chevrolet EFI with conventional throttle bodies.

Shown here is a fully polished smallblock Chevy EFI with 4-inch tall air horns.  We offer air horns in four sizes ranging from 1-3/8" to 4".    Tags on the IAC and coolant sensor can also be seen in this photo.  We install and tag all sensors for you here to avoid any confusion.

LS-3 with standard throttle bodies.  We build EFI's for LS-1, LS-2, LS-3, LS-6, and LS-7 engines.

The LS-3/LS7 "Semi Crossram" is one of our most exotic EFI''s.  If you want to make a statement with a different look in EFI, this is the top of the food chain.   The manifold and throttle bodies are shown here in optional finishes with the standard 75mm air horns.


Screens and filters

Debris screens provide protection without effecting the visual beauty of the eight stack unit.

Individual stack filters can ordered with your EFI.  These are custom-fit filters, made for our air horns by BBR, a leading manufacturer of individual stack filters. 

Because EFI’s include a variety of components that vary from engine to engine, please call with your specifics and I’ll price a customized package for you.  I’ll need you to tell me if you need an ECU, if your engine was fuel injected or non-injected to begin with, type of transmission, and if you’ll need a fuel pump or an ignition for it.  I can supply everything you need.  In most cases, a Terminator X controller will be the best choice and I'll be happy to select the right version of T-X for your application.



One of the features of the Holley Terminator X ECU is the ability to connect a laptop to go deeper into the tuning process.  For this, you will need to purchase a Holley USB/Can interface communication cable, part number #558-443.  This cable is not included with any of the Terminator X ECU kits.

Terminator X software is available under the support tab at Holley.com. Or, you can click on this link: https://www.holley.com/support/resources/#Fuel_Injection. Scroll down to find the Terminator X platform and click on the second line:  Terminator X Software.  Download the software allowing the program to make any changes to the laptop as prompted. 


What a wonderful piece of art you have sent, Thank you. The mechanic, machine shop and all friends are completely impressed. (as well as myself being very impressed) 

 Tim McMath

Just wanted you and your team to know the fuel Injection system you put together for us is more beautiful than I ever expected.

I am sure the performance will equal the attention to detail spent on this project.


Bob Lima

We completed the install of the 8 stack system and it is running great! We put a basic tune in the Holley Dominator ECU and got it running. We were going to fine-tune it on the dyno but so far it is learning and improving with every drive. It gives me the instant start, good idle speed, and plenty of punch from a stop. I will let you know how it improves as it gets more data.

Bruce Conwell

François Clavien

I just wanted to thank you for your fantastic work ! I received it on Monday and I'm in heaven. It is superb! 

I will send photos when it's installed.

Thank you a thousand times,
François Clavien, Switzerland