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Avenger EFI 4bbl Throttle Body Fuel Injection System

This product is no longer available

PART# 550-400

Not Available Online

Fits all standard square flange intake manifolds. All Avenger EFI systems come with all installation components including wiring harness, sensors and in-line pump. Return fuel line to tank is not included.

Overview

Replace your carburetor with a “Bolt on and Go” TBI system! Avenger™ EFI throttle body kits are a direct replacement for a carburetor. Plug and play connectors make installation a snap and the Avenger’s Self-tuning capabilities will have you up and running in no time. Come with all necessary parts for a complete installation. All set up is done on the included hand-held tuner so no laptop is required!

Features:

  • Self-tuning fueling strategy tunes while you drive - Designed for the user that wants ease of use without having to be a “tuning expert”
  • Requires no laptop computer to set up or tune - Included full color OLED hand-held tuner offers simple setup and easy tuning of basic parameters such as engine idle speed. Still allows for users to change other parameters to further fine tune base calib
  • Dedicated fuel and oil pressure inputs
  • Allows for computer controlled ignition timing if desired
  • System can be upgraded in the future to a Holley “HP EFI System” if desired

Specs

BrandHolley EFI
Emission Code3
Product TypePerformance TBI

Tech Resources

Certified Holley EFI Dealers
Do you need a custom kit built for your application? Do you need a system installed and tuned? Click here to find the Certified Holley EFI dealer in your area! (All Certified EFI Dealers are factory trained.)
Fits all standard square flange intake manifolds. All Avenger EFI systems come with all installation components including wiring harness, sensors and in-line pump. Return fuel line to tank is not included.

Emissions

This part is legal for use on Uncontrolled (Non-Emissions Controlled) Vehicles or Racing Vehicles.

The following vehicles are considered Uncontrolled (Non-Emissions Controlled) Vehicles:

  • 1965 and older U.S. manufactured California Certified vehicles
  • 1967 and older U.S. manufactured Federally Certified vehicles
  • 1967 and older Foreign manufactured vehicle

Racing Vehicles are vehicles that are used exclusively for racing or other forms of competition that are not registered and that may never be used on the street.

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    *Free Shipping & Handling only offered to the continental US on orders over $100.

    Some parts are not legal for use in California or other states with similar regulations.