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EFI / Electronic Fuel Injection Systems

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FiTech Ultimate LS 750 HP EFI Short LS3 Port Intake Fuel Injection Master Kits 78814

FiTech Ultimate LS 750 HP EFI Short LS3 Port Intake Fuel Injection Master Kits 78814

FiTech Ultimate LS 750 HP EFI Short LS3 Port Intake Fuel Injection Master Kits 78814

Ultimate LS 750 HP EFI System With Master Kit Short LS3 Port Intake

Part Number: FIF-78814

Not Yet Reviewed

Estimated Ship Date: Dec 19, 2025 if ordered today

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Estimated Ship Date: Dec 19, 2025 if ordered today

FiTech Ultimate LS 500 HP EFI Short LS7 Port Intake Fuel Injection Master Kits 78815

FiTech Ultimate LS 500 HP EFI Short LS7 Port Intake Fuel Injection Master Kits 78815

FiTech Ultimate LS 500 HP EFI Short LS7 Port Intake Fuel Injection Master Kits 78815

Ultimate LS 500 HP EFI System With Master Kit Short LS7 Port Intake

Part Number: FIF-78815

Not Yet Reviewed

Estimated Ship Date: Dec 19, 2025 if ordered today

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Estimated Ship Date: Dec 19, 2025 if ordered today

FiTech Ultimate LS 500 HP EFI Short LS7 Port Intake Fuel Injection Master Kits 78816

FiTech Ultimate LS 500 HP EFI Short LS7 Port Intake Fuel Injection Master Kits 78816

FiTech Ultimate LS 500 HP EFI Short LS7 Port Intake Fuel Injection Master Kits 78816

Ultimate LS 500 HP EFI System With Master Kit Short LS7 Port Intake

Part Number: FIF-78816

Not Yet Reviewed

Estimated Ship Date: Dec 19, 2025 if ordered today

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Estimated Ship Date: Dec 19, 2025 if ordered today

FiTech Ultimate LS 750 HP EFI Short LS7 Port Intake Fuel Injection Master Kits 78817

FiTech Ultimate LS 750 HP EFI Short LS7 Port Intake Fuel Injection Master Kits 78817

FiTech Ultimate LS 750 HP EFI Short LS7 Port Intake Fuel Injection Master Kits 78817

Ultimate LS 750 HP EFI System With Master Kit Short LS7 Port Intake

Part Number: FIF-78817

Not Yet Reviewed

Estimated Ship Date: Dec 19, 2025 if ordered today

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Estimated Ship Date: Dec 19, 2025 if ordered today

FiTech Ultimate Rebel LS 500 HP EFI Fuel Injection Systems 78888

FiTech Ultimate Rebel LS 500 HP EFI Fuel Injection Systems 78888

FiTech Ultimate Rebel LS 500 HP EFI Fuel Injection Systems 78888

Fuel Injection System, Ultimate Rebel, 500 HP, Cathedral Port, 92 mm, In-Tank Fuel Pump, LS3 Coils, 36 Lb., EV1, Without Transmission Controller, Kit

Part Number: FIF-78888

Not Yet Reviewed

Estimated Ship Date: Dec 19, 2025 if ordered today

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Estimated Ship Date: Dec 19, 2025 if ordered today

FiTech Ultimate Rebel LS 500 HP EFI Fuel Injection Systems 78889

FiTech Ultimate Rebel LS 500 HP EFI Fuel Injection Systems 78889

FiTech Ultimate Rebel LS 500 HP EFI Fuel Injection Systems 78889

Fuel Injection System, Ultimate Rebel, 500 HP, Cathedral Port, 92 mm, In-Tank Fuel Pump, LS3 Coils, 36 Lb., EV1, With Transmission Controller, Kit

Part Number: FIF-78889

Not Yet Reviewed

Estimated Ship Date: Dec 19, 2025 if ordered today

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Estimated Ship Date: Dec 19, 2025 if ordered today

FiTech Ultimate Rebel LS 750 HP EFI Fuel Injection Systems 78890

FiTech Ultimate Rebel LS 750 HP EFI Fuel Injection Systems 78890

FiTech Ultimate Rebel LS 750 HP EFI Fuel Injection Systems 78890

Fuel Injection System, Ultimate Rebel, 750 HP, Cathedral Port, 102 mm, In-Tank Fuel Pump, LS3 Coils, 55 Lb., EV1, Without Transmission Controller, Kit

Part Number: FIF-78890

Not Yet Reviewed

Estimated Ship Date: Dec 19, 2025 if ordered today

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Estimated Ship Date: Dec 19, 2025 if ordered today

FiTech Ultimate Rebel LS 750 HP EFI Fuel Injection Systems 78891

FiTech Ultimate Rebel LS 750 HP EFI Fuel Injection Systems 78891

FiTech Ultimate Rebel LS 750 HP EFI Fuel Injection Systems 78891

Fuel Injection System, Ultimate Rebel, 750 HP, Cathedral Port, 102 mm, In-Tank Fuel Pump, LS3 Coils, 55 Lb., EV1, With Transmission Controller, Kit

Part Number: FIF-78891

Not Yet Reviewed

Estimated Ship Date: Dec 19, 2025 if ordered today

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Estimated Ship Date: Dec 19, 2025 if ordered today

FiTech Ultimate Rebel LS 1000 HP EFI Fuel Injection Systems 78892

FiTech Ultimate Rebel LS 1000 HP EFI Fuel Injection Systems 78892

FiTech Ultimate Rebel LS 1000 HP EFI Fuel Injection Systems 78892

Fuel Injection System, Ultimate Rebel, 1,000 HP, Cathedral Port, 102mm, Dual In-Tank Pump, LS3 Coils, 80Lb., EV1, Without Transmission Controller, Kit

Part Number: FIF-78892

Not Yet Reviewed

Estimated Ship Date: Dec 19, 2025 if ordered today

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Estimated Ship Date: Dec 19, 2025 if ordered today

FiTech Ultimate LS EFI 500 HP Fuel Injection Systems 79107

FiTech Ultimate LS EFI 500 HP Fuel Injection Systems 79107

FiTech Ultimate LS EFI 500 HP Fuel Injection Systems 79107

Fuel Injection System, Ultimate LS 500 HP, Tall Intake for Truck Accessories Cathedral Port, In-Line Fuel Pump, LED Coil Packs, Trans Controller, Kit

Part Number: FIF-79107

Not Yet Reviewed

Estimated Ship Date: Dec 19, 2025 if ordered today

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Estimated Ship Date: Dec 19, 2025 if ordered today

FiTech Ultimate LS EFI 500 HP Fuel Injection Systems 79111

FiTech Ultimate LS EFI 500 HP Fuel Injection Systems 79111

FiTech Ultimate LS EFI 500 HP Fuel Injection Systems 79111

Fuel Injection System, Ultimate LS, 500 HP, Multi-port, Rectangular Port Heads, Force Fuel, In-Line Fuel Pump, LED Coil Packs, Kit

Part Number: FIF-79111

Not Yet Reviewed

Estimated Ship Date: Dec 19, 2025 if ordered today

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Estimated Ship Date: Dec 19, 2025 if ordered today

FiTech Ultimate Rebel LS 500 HP EFI Fuel Injection Systems 79188

FiTech Ultimate Rebel LS 500 HP EFI Fuel Injection Systems 79188

FiTech Ultimate Rebel LS 500 HP EFI Fuel Injection Systems 79188

Fuel Injection System, Ultimate Rebel, 500 HP, Cathedral Port, 92mm, Inline Fuel Pump, LS3 Coils, 36 Lb., EV1, Without Transmission Controller, Kit

Part Number: FIF-79188

Not Yet Reviewed

Estimated Ship Date: Dec 19, 2025 if ordered today

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Estimated Ship Date: Dec 19, 2025 if ordered today

FiTech Ultimate Rebel LS 500 HP EFI Fuel Injection Systems 79189

FiTech Ultimate Rebel LS 500 HP EFI Fuel Injection Systems 79189

FiTech Ultimate Rebel LS 500 HP EFI Fuel Injection Systems 79189

Fuel Injection System, Ultimate Rebel, 500 HP, Cathedral Port, 92mm, Inline Fuel Pump, LS3 Coils, 36 Lb., EV1, With Transmission Controller, Kit

Part Number: FIF-79189

Not Yet Reviewed

Estimated Ship Date: Dec 19, 2025 if ordered today

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Estimated Ship Date: Dec 19, 2025 if ordered today

FiTech Ultimate Rebel LS 750 HP EFI Fuel Injection Systems 79190

FiTech Ultimate Rebel LS 750 HP EFI Fuel Injection Systems 79190

FiTech Ultimate Rebel LS 750 HP EFI Fuel Injection Systems 79190

Fuel Injection System, Ultimate Rebel, 750 HP, Cathedral Port, 102mm, Inline Fuel Pump, LS3 Coils, 55 Lb., EV1, Without Transmission Controller, Kit

Part Number: FIF-79190

Not Yet Reviewed

Estimated Ship Date: Dec 19, 2025 if ordered today

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Estimated Ship Date: Dec 19, 2025 if ordered today

FiTech Ultimate Rebel LS 750 HP EFI Fuel Injection Systems 79191

FiTech Ultimate Rebel LS 750 HP EFI Fuel Injection Systems 79191

FiTech Ultimate Rebel LS 750 HP EFI Fuel Injection Systems 79191

Fuel Injection System, Ultimate Rebel, 750 HP, Cathedral Port, 102mm, Inline Fuel Pump, LS3 Coils, 55 Lb., EV1, With Transmission Controller, Kit

Part Number: FIF-79191

Not Yet Reviewed

Estimated Ship Date: Dec 19, 2025 if ordered today

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Estimated Ship Date: Dec 19, 2025 if ordered today

FiTech Ultimate LS 500 HP EFI Short Cathedral Intake Fuel Injection Master Kits 79401

FiTech Ultimate LS 500 HP EFI Short Cathedral Intake Fuel Injection Master Kits 79401

FiTech Ultimate LS 500 HP EFI Short Cathedral Intake Fuel Injection Master Kits 79401

Ultimate LS 500 HP EFI System With Master Kit Short Cathedral Intake

Part Number: FIF-79401

Not Yet Reviewed

Estimated Ship Date: Dec 19, 2025 if ordered today

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Estimated Ship Date: Dec 19, 2025 if ordered today

FiTech Ultimate LS 500 HP EFI Short Cathedral Intake Fuel Injection Master Kits 79402

FiTech Ultimate LS 500 HP EFI Short Cathedral Intake Fuel Injection Master Kits 79402

FiTech Ultimate LS 500 HP EFI Short Cathedral Intake Fuel Injection Master Kits 79402

Ultimate LS 500 HP EFI System With Master Kit Short Cathedral Intake

Part Number: FIF-79402

Not Yet Reviewed

Estimated Ship Date: Dec 19, 2025 if ordered today

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Estimated Ship Date: Dec 19, 2025 if ordered today

FiTech Ultimate LS 500 HP EFI Long Runner Cathedral Intake Fuel Injection Master Kits 79406

FiTech Ultimate LS 500 HP EFI Long Runner Cathedral Intake Fuel Injection Master Kits 79406

FiTech Ultimate LS 500 HP EFI Long Runner Cathedral Intake Fuel Injection Master Kits 79406

Ultimate LS 500 HP EFI System With Master Kit Long Runner Cathedral Intake

Part Number: FIF-79406

Not Yet Reviewed

Estimated Ship Date: Dec 19, 2025 if ordered today

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Estimated Ship Date: Dec 19, 2025 if ordered today

FiTech Ultimate LS 500 HP EFI Long Runner Cathedral Intake Fuel Injection Master Kits 79407

FiTech Ultimate LS 500 HP EFI Long Runner Cathedral Intake Fuel Injection Master Kits 79407

FiTech Ultimate LS 500 HP EFI Long Runner Cathedral Intake Fuel Injection Master Kits 79407

Ultimate LS 500 HP EFI System With Master Kit Long Runner Cathedral Intake

Part Number: FIF-79407

Not Yet Reviewed

Estimated Ship Date: Dec 19, 2025 if ordered today

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Estimated Ship Date: Dec 19, 2025 if ordered today

FiTech Ultimate LS 500 HP EFI Short LS3 Port Intake Fuel Injection Master Kits 79411

FiTech Ultimate LS 500 HP EFI Short LS3 Port Intake Fuel Injection Master Kits 79411

FiTech Ultimate LS 500 HP EFI Short LS3 Port Intake Fuel Injection Master Kits 79411

Ultimate LS 500 HP EFI System With Master Kit Short LS3 Port Intake

Part Number: FIF-79411

Not Yet Reviewed

Estimated Ship Date: Dec 19, 2025 if ordered today

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Estimated Ship Date: Dec 19, 2025 if ordered today

FiTech Ultimate LS 500 HP EFI Short LS3 Port Intake Fuel Injection Master Kits 79412

FiTech Ultimate LS 500 HP EFI Short LS3 Port Intake Fuel Injection Master Kits 79412

FiTech Ultimate LS 500 HP EFI Short LS3 Port Intake Fuel Injection Master Kits 79412

Ultimate LS 500 HP EFI System With Master Kit Short LS3 Port Intake

Part Number: FIF-79412

Not Yet Reviewed

Estimated Ship Date: Dec 19, 2025 if ordered today

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Estimated Ship Date: Dec 19, 2025 if ordered today

FiTech Ultimate LS 500 HP EFI Short LS7 Port Intake Fuel Injection Master Kits 79415

FiTech Ultimate LS 500 HP EFI Short LS7 Port Intake Fuel Injection Master Kits 79415

FiTech Ultimate LS 500 HP EFI Short LS7 Port Intake Fuel Injection Master Kits 79415

Ultimate LS 500 HP EFI System With Master Kit Short LS7 Port Intake

Part Number: FIF-79415

Not Yet Reviewed

Estimated Ship Date: Dec 19, 2025 if ordered today

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Estimated Ship Date: Dec 19, 2025 if ordered today

FiTech Ultimate Rebel LS 500 HP EFI Fuel Injection Systems 76389

FiTech Ultimate Rebel LS 500 HP EFI Fuel Injection Systems 76389

FiTech Ultimate Rebel LS 500 HP EFI Fuel Injection Systems 76389

Fuel Injection System, Ultimate Rebel, 500 HP, Cathedral Port, 92mm Throttle Body, In-Tank Fuel Pump, 36 Lb., EV1, With Transmission Controller, Kit

Part Number: FIF-76389

Not Yet Reviewed

Estimated Ship Date: Dec 19, 2025 if ordered today

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Estimated Ship Date: Dec 19, 2025 if ordered today

FiTech Ultimate Rebel LS 750 HP EFI Fuel Injection Systems 76390

FiTech Ultimate Rebel LS 750 HP EFI Fuel Injection Systems 76390

FiTech Ultimate Rebel LS 750 HP EFI Fuel Injection Systems 76390

Fuel Injection System, Ultimate Rebel, 750 HP, Cathedral Port, 102mm, Throttle Body, In-Tank Pump, 55 Lb., EV1, Without Transmission Controller, Kit

Part Number: FIF-76390

Not Yet Reviewed

Estimated Ship Date: Dec 19, 2025 if ordered today

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Estimated Ship Date: Dec 19, 2025 if ordered today

FiTech Ultimate Rebel LS 750 HP EFI Fuel Injection Systems 76391

FiTech Ultimate Rebel LS 750 HP EFI Fuel Injection Systems 76391

FiTech Ultimate Rebel LS 750 HP EFI Fuel Injection Systems 76391

Fuel Injection System, Ultimate Rebel, 750 HP, Cathedral Port, 102mm Throttle Body, In-Tank Fuel Pump, 55 Lb., EV1, With Transmission Controller, Kit

Part Number: FIF-76391

Not Yet Reviewed

Estimated Ship Date: Dec 19, 2025 if ordered today

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Estimated Ship Date: Dec 19, 2025 if ordered today

Related Articles

3 Reasons to Consider a Self-Learning Fuel Injection System Tech Article

3 Reasons to Consider a Self-Learning Fuel Injection System

Tuning is rewarding when you want to do it, but aggravating when you have to do it. Today’s self-learning fuel injection systems give us the best of both worlds. The injection units quickly learn what the engine wants to run at its best and offers additional tools for those who like to tinker.

Example images of throttle body and multi-port EFI kits Tech Article

Which fuel injection kit is right for me?

If you’re tired of messing with jets and needles, replacing your carburetor with a Fuel Injection System has never been easier. If you make the right choices, the system will work great with engine you have today. It can also support your planned upgrades.

Carbureted vs. EFI: Fuelab Tech Article

Carbureted vs. EFI: Fuelab Examines How Fuel Line Size Relates to Fuel Pressure Drop (and Why it Matters)!

Does size really matter when it comes to fuel lines? According to the fuel delivery system experts at Fuelab, it does. It’s because fuel line size and length have a direct effect on the amount of fuel pressure drop your fuel system will experience.

How do I pick the right size fuel injection kit? Tech Article

How do I pick the right size fuel injection kit?

EFI Kits are rated by the maximum horsepower they support with gasoline. But what about the smallest engine a system can support? Choosing an EFI system that’s too big will result in poor idle and bad throttle response, same as a carburetor. Keep reading to learn what affects these ratings and how to pick the right kit for your motor.

Can I run a turbocharger, supercharger, or nitrous oxide with my fuel injection kit? Tech Article

Can I run a turbocharger, supercharger, or nitrous oxide with my fuel injection kit?

Power adders like nitrous, turbochargers, and superchargers are a natural fit with EFI. If you want to use power adders now or in the future, buy an EFI kit that is Power Adder Compatible from the start. A power adder compatible kit will work fine with or without boost or nitrous, and it might be impossible to make a non-compatible kit work with power adders. Unfortunately, not all power adder compatible kits are created equal. They usually have:

Can I use a fuel injection kit to control ignition timing? Tech Article

Can I use a fuel injection kit to control ignition timing?

Most fuel injection kits will work with your existing ignition system. All they really need is a tach signal. Ignition Timing Advance can be handled Mechanically and/or with Vacuum, just like with a carburetor.

An example of 2 different in-tank style fuel pumps. Tech Article

What type of electric fuel pump should I use?

Electric fuel pumps come in three basic types. As long as a fuel pump provides the Flow Rate your engine needs at the pressure your Fuel Injected or Carbureted system requires, it will work just fine. It is just a matter of deciding which one works best for your installation.

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