Ditch Your Carburetor: EFI FiTech Fuel Injection System
Discover how FiTech fuel injection systems offer self-tuning technology, easy installation, and incredible engine performance.
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Every classic car enthusiast knows the familiar morning routine. You pump the gas pedal, pull the choke, and simply hope the motor decides to cooperate. Sometimes you expect a smooth, steady idle, but instead, you are greeted with a sputtering, unpredictable mess.
Old carburetors undoubtedly hold a certain nostalgic charm. Dealing with vapor lock, constant tuning, and poor mileage gets old incredibly fast. If you want to drive your vintage car or truck without constantly worrying that it will leave you stranded at a red light, it is time to upgrade.
The Fitech Fuel Injection System is a modern EFI system that completely transforms how your vehicle runs on the street. You get instant cold starts, crisp throttle response, and reliable power delivery. FITECH fuel injection removes the extreme frustration out of engine management.
Instead of spending an entire week trying to repair worn-out components or messing with jets, you can install a complete Fitech kit and get back to enjoying your ride. You never have to wonder or guess about air-to-fuel ratios again.
These fuel injection systems beautifully bridge the gap between old-school hot rods and modern drivability. By replacing your stock carb with a self learning throttle body, you eliminate the guesswork entirely.
The system constantly monitors your engine, making precise adjustments while you drive. This guide will walk you through the various Fitech EFI Systems available at Summit Racing, exploring everything from basic 400-horsepower kits to aggressive 600-horsepower tri-power setups.
Classic Carburetors vs. Modern EFI
Many purists talk about keeping their classic cars completely original. They often claim that rebuilding an old carburetor is cheaper and easier than dealing with modern electronics. Let's be entirely honest about that old stuff sitting on top of your intake manifold.
Over time, internal passages inevitably clog, floats sink, and base plates warp due to intense heat cycles. You might find yourself putting new rebuild kits in every few years, only to end up right back where you started. Why risk poor reliability when you can bolt on a self-learning TBI unit?
Upgrading to modern fuel injection solves these inherent design flaws. A fitech system delivers highly atomized fuel directly into the intake via internal injectors, thereby vastly improving combustion. When you hit the gas, the response is immediate and forceful. You do not have to modify your driving habits to suit a cold engine.
The ECU handles everything seamlessly. Some builders might ask about popular alternatives on the market, like the Holley Sniper or FAST EFI setups. While Holley and FAST certainly make good stuff, the Fitech EFI platform consistently stands out for its straightforward installation and budget-friendly pricing. If you want to finally ditch the old technology and enjoy real, usable performance, FI tech is the way to go.
The Go Street EFI 400 HP Series
Not every classic build requires a massive, fire-breathing race engine. For a standard Ford small block, a mild Chevy 350, or a classic daily cruiser, the Go Street EFI 400 HP series hits the absolute sweet spot. This entry-level setup is completely self-contained, which means it offers an incredibly simple installation process.
FiTech Go Street EFI 400 HP Self-Tuning Fuel Injection Systems 30003
Fuel Injection System, Go Street EFI 400HP Self-Tuning, Throttle Body, ECM, Kit
Perfect for Entry-Level Performance (FIF-30003)
The FIF-30003 kit is the definitive starting point for anyone looking to ditch their carburetor. Good for up to 400 horsepower, this single 4-barrel throttle body features four internal injectors.
It uses a speed-density metering style and mounts directly to a standard 4150 square-bore flange. The kit thoughtfully includes a built-in fuel pressure regulator and all the necessary vital sensors. Because the ECM is securely mounted directly on the throttle body, you do not have to worry about running a massive wiring harness through your firewall.
FiTech Go Street EFI 400 HP Self-Tuning Fuel Injection Systems with Force Fuel Systems 35203
Fuel Injection System, Go Street 400 HP Self Tuning, Force Fuel System, Kit
The Force Fuel System Combo (FIF-35203)
One massive hurdle many enthusiasts face when switching to EFI is figuring out the required fuel delivery. Carburetors run on low pressure, but a Fitech fuel setup absolutely requires high pressure. The FIF-35203 package addresses this by including the Go Street throttle body along with the FiTech Force Fuel system.
The Force Fuel surge tank mounts easily in the engine bay and uses your mechanical fuel pump to feed its internal 340 lph high-pressure pump. You save serious money by not having to replace your entire fuel tank or run a brand-new high-pressure fuel line the full length of the vehicle.
Stepping Up to 600 HP
When you build an engine with aggressive cylinder heads and a large camshaft, you need significantly more fuel flow. The Go EFI 4 600 HP series provides the extra capacity required to feed thirsty powerplants, while also adding advanced features like direct ignition timing control.
FiTech Go EFI 4 600 HP Self-Tuning Fuel Injection Systems 30002
Fuel Injection System, Go EFI 4 600HP Self-Tuning, Throttle Body, Satin Black, ECM, Kit
High-Performance Builds (FIF-30002)
Rated to support engines from 250 up to 600 horsepower, the FIF-30002 kit arrives in a sleek satin black finish. Unlike the basic 400 HP model, this specific system allows for direct timing control. You can completely lock out your distributor and let the Fitech computer precisely map your timing curve.
This calibration module automatically adjusts air/fuel ratios and ignition timing on the fly, delivering unparalleled street drivability. It even features an adjustable fan control switch and voltage-controlling fuel pump control, which dramatically reduces power under low loads to keep pump temperatures down.
FiTech Go EFI 4 600 HP Self-Tuning Fuel Injection Systems 31002
Fuel Injection System, Go EFI 4 600 HP Self-Tuning, Throttle Body, Black Powdercoated, Injectors, ECM, Kit
Comprehensive Inline Pump Kits (FIF-31002)
If you prefer to run a continuous high-pressure line from the rear of the vehicle, the FIF-31002 package bundles the impressive 600 HP throttle body with a 255 lph inline fuel pump kit. This system includes the pump, pre-filters, post-filters, and a basic hose. Setting up a completely dedicated EFI fuel system ensures a constant, unwavering supply of high-pressure gas to the unit at all times.
FiTech Go EFI 3x2 Tri Power 600 HP Fuel Injection Systems 39610
Fuel Injection System, Go EFI 3x2 Tri Power, 600 HP, Self-Tuning, Throttle Body, Classic Gold, Kit
The Tri-Power Advantage
Many iconic classic cars originally came with multi-carburetor setups straight from the factory. While they look absolutely incredible under the hood, getting three individual carburetors to sync perfectly is notoriously difficult. The FiTech Go EFI 3x2 Tri Power 600 HP system (FIF-39610) offers the ultimate solution.
This kit provides the stunning visual aesthetic of a classic triple 2-barrel setup but operates with the absolute precision of modern EFI. Finished in classic gold, it features three high-flow throttle bodies, each sporting two 45mm throttle bores. Because the center throttle body exclusively handles idling and cruising, the system delivers surprisingly excellent fuel economy.
When you stand on the throttle, the outer bodies open up to unleash full power. It comfortably fits intake manifolds with three Holley 2300 flanges and works beautifully with E-85 gasoline. The external ecu keeps the outward appearance incredibly clean.
Other Options for Extreme Horsepower
FiTech Ultimate Retro LS EFI 750 HP Fuel Injection Systems 37002
Fuel Injection Systems, Retro LS Port 750 HP EFI Matte Black System With LS3 Intake
FiTech Go EFI 8 Power Adder Plus 1200 HP Fuel Injection Systems 30013
Go EFI 8 1200 HP Bright Aluminum Finish System
Self-Tuning Technology and Setup Of The Fitech Fuel Injection System
The biggest fear many classic car owners have about EFI is the tuning process itself. You might think you need an expensive, professional dyno session just to make it run right, but that is simply wrong. The Fitech system is supposed to be highly user-friendly, and it absolutely delivers on that bold promise.
Every kit comes standard with a 4.5-inch touch screen display. You simply plug the display into the throttle body, answer a few basic questions about your engine, and start the car. The ECU takes over from there. As you drive, the included Bosch 4.2 wideband oxygen sensor strictly monitors the exhaust gases and continually refines the fuel map.
You have complete control over the final tune, but the system possesses the unique ability to optimize itself without any human intervention. The clearly marked harness guarantees that connecting the battery, ignition, and sensors is a totally free and painless task.
Fuel System Requirements
You cannot simply bolt on an EFI throttle body and expect it to work with a standard mechanical pump. An EFI system requires specialized, high-pressure fuel delivery components. Depending on your budget and vehicle, you have a few excellent options to consider carefully.
The most reliable method is dropping in a dedicated EFI tank equipped with an internal high-pressure fuel pump. Alternatively, you can easily use an inline pump, though you must ensure it is mounted very low and near the tank to prevent overheating. Finally, there is the highly popular surge tank method. Whichever specific route you choose, you must consistently use high-pressure-rated hose and secure EFI-rated fittings.
Fuel Injection Systems Installation
Upgrading to a FiTech fuel injection system is one of the smartest moves you can make for your classic car or truck, but getting the most out of your new EFI setup starts with a careful, well-planned installation. Whether you’re putting together a daily driver or a high-performance build, the right approach ensures your engine runs smoother, starts faster, and delivers the kind of reliable power you expect from modern fuel injection.
Preparation is key. Before you even unbox your FiTech EFI kit, take the time to inspect your fuel tank and fuel lines. Make sure the tank is clean and free of rust or debris—contaminants can wreak havoc on injectors and the entire fuel system. Upgrading to EFI means you’ll need a high-pressure fuel pump, so double-check that your fuel pump and fuel lines are rated for EFI pressures. Proper routing and secure fittings are essential to prevent leaks and maintain consistent fuel delivery.
When it’s time to install the throttle body, follow the manufacturer’s instructions closely. FiTech EFI systems are designed for straightforward installation, but attention to detail makes all the difference. Mount the throttle body securely to your intake, and connect the fuel lines using EFI-rated hose and fittings.
The included wiring harness is clearly labeled, making it easy to connect the ECU, injectors, sensors, and power sources. Take your time with the wiring—neat, well-routed harnesses not only look professional but also reduce the risk of electrical interference or future troubleshooting headaches.
One of the standout features of FiTech fuel injection is its self-learning capability. Once everything is connected, the ECU takes over, automatically tuning the system for your specific engine setup. This means less time spent fiddling with manual adjustments and more time enjoying the road. Still, it’s important to double-check all connections and run through the initial setup using the included display unit to ensure everything is communicating properly.
Don’t forget about ongoing support and maintenance. FiTech offers robust tech support, including online resources, phone assistance, and active forums where you can get help from both experts and fellow enthusiasts. Regularly inspect your fuel system for leaks, check the condition of your wiring, and monitor the system’s performance using the built-in diagnostics.
By following these steps and adhering to the installation details, you’ll unlock the full potential of your FiTech EFI system. Whether you’re chasing better performance, improved fuel efficiency, or just a more reliable engine, a properly installed FiTech fuel injection system delivers results you can count on—mile after mile.
Frequently Asked Questions
To clear up any lingering confusion regarding your massive engine upgrade, here are some highly common questions about making the ultimate switch.
Does the Fitech kit come with a warranty?
Yes, these advanced systems come with a comprehensive manufacturer's warranty to firmly protect your investment. Keep your purchase receipt and register the product quickly to ensure your coverage remains entirely valid.
What should I do if I need help during installation?
The installation instructions are incredibly detailed, but sometimes you inevitably hit a frustrating roadblock. FiTech offers absolutely excellent tech support. You can call their dedicated support line and speak directly to a knowledgeable technician who will walk you through the setup process.
Does it matter which EFI system I choose?
It absolutely does matter. Selecting a massive unit rated for 600 HP on a mild 250 HP engine can quickly lead to poor low-speed drivability because the fuel injectors are far too large. Always strictly match the system's horsepower rating to your actual engine output.
Maximum Performance and Unbeatable Value
Making the giant leap from a tired carburetor to a modern Fitech Fuel Injection System will completely revitalize your classic vehicle. The frustrating days of struggling with difficult cold starts and dangerously poor throttle response are finally over. Whether you ultimately choose the entry-level Go Street 400 HP setup or the incredible Tri-Power 600 HP kit, you gain the reliability and efficiency of modern automotive technology.
The overall cost is highly reasonable when you factor in the massive drivability improvements. Use the links above to securely browse Summit Racing and explore the full line of Fitech products. You will save enormous amounts of time, completely eliminate tuning headaches, and finally unlock the true potential of your motor.
Thank you for reading!
Your friend,
Todd
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Todd Bandel
Todd Bandel
Todd Bandel
Todd Bandel