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Holley EFI

Avenger EFI Stealth Ram System

Avenger EFI Stealth Ram™ MPFI Fuel Injection System, Small Block Chevy, Vortec Heads, 36 lb per hour injectors, Range Up to 500 HP, Polished

Part # 550-827 Be the first to write a review
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$5,109.95
Suggested Retail
$5,678.00
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You're sure to get some attention when you pop the hood and show an Avenger Stealth Ram™ Multi-Port EFI system! Available for traditional or Vortec headed SB Chevys, the Avenger's self-tuning capabilities make it as easy as 1, 2, 3 to get your car up and running with EFI. The tunnel ram design of the Stealth Ram™ builds power in the upper RPM range while maintaining excellent mid-range torque as well. Avenger Stealth Ram™ systems include: intake manifold, billet throttle body, ECU, wiring harness, fuel rails, injectors, fuel pump and related small parts. 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 the ease of use without having to be a “tuning expert”
  • Requires no laptop computer to set up or tune - Includes full color OLED hand-held tuner that 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
  • 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

About Holley EFI

Holley is the new standard in EFI! Whether you're engine swapping your classic car or need to manage 4000 horsepower in your twin-turbocharged drag radial race car, Holley EFI has the solutions you need to get your project up and running better than ever!

Brand Holley EFI
Emission Code3
Product TypeAvenger EFI Kit
UPC090127667064
Part Number550-827
3

This part is legal for sale and use on Uncontrolled (Non-Emissions Controlled) Vehicles and Racing Use Only 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

The following vehicles are considered Racing Use Only Vehicles:

  • Racing Use Only Vehicles are vehicles that are used exclusively for competition and that are not registered and that may never be used on the street

WARNING: It is against the law to install this part on an Emissions Controlled Vehicle

The following vehicles are considered Emissions Controlled Vehicles:

  • 1966 and newer U.S. manufactured California Certified vehicles
  • 1968 and newer U.S. manufactured Federally Certified vehicles
  • 1968 and newer Foreign manufactured vehicle
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 Holley EFI dealer in your area!
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. ECU is certified to ISO 8846, SAE J1171 & United States Coast Guard Requirements for Ignition Protection & Fire Resistance. These kits require the use of a small diameter distributor, such as a small cap GM HEI or most MSD distributors. A large cap GM HEI will not fit with these kits.
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    Some parts are not legal for use in California or other states with similar regulations.

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