-10% Out Of Stock Avenger Multi-Point EFI Kit, Small Block Chevy, Early to Late Heads


Special Notes: Holley has decided to discontinue these really fantastic EFI System Packages. This price is $600 less than the normal price. If you are instersted then jump on this now because they only have a few in stock and when they're gone--they're gone. (Order does not guarantee availability. If not available we will thank you for trying and credit you in full. No rain checks or substitutions.)

Avenger Multi-Port EFI systems for small or big block Chevys are ready for the street or strip with the simple swap of an intake! Whether you have a stock engine, crate or custom-built engine, Avenger Multi-Port systems can help you maximize performance and the Avenger’s self-tuning capabilities will get you to the cruise or race in no time. Avenger Multi-Port 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!


  • 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
  • Includes full color OLED hand-held tuner that offers simple setup and easy tuning of basic parameters such as engine idle speed
  • 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

Not Sure? Review this product documentation before you buy!

Installation Manual
Holley Avenger 4BBL Multipoint System

Setup and Tuning Manual
Holley Avenger ECU / Handheld

Boost ControlNo
DIS OutputsNone
Fueling StrategySpeed Density
Includes Power HarnessYes
Injector DriversFour
Internal Datalogging4GB
Knock Control Channels0
Nitrous ControlNo
Number of Cylinders4, 6, or 8 (Even Fire Only)
User Configurable I/OYes
User-Selectable MAP StorageNo
Water-Methanol ControlNo
Displays And Controllers
Auto BrightnessNo
CAN Bus CapableYes
Case/Bezel FinishBlack
Data LoggingN/A
Display TypeLCD
FunctionsInitial Setup, Monitoring
Gauge/Display Size3.5 Inch Rectangular
Internal StorageN/A
Throttle Bodies
Airflow Rate (CFM)1000 CFM
Barrels (BBL)4
Gaskets IncludedYes
IAC Motor IncludedYes
Injectors IncludedYes
StyleMulti-Point Fuel Injection
Throttle Bore Diameter (ea)44.45
TPS Sensor IncludedYes
Intake Manifolds
Complete ManifoldYes
Front Height5.50 Inches
Fuel Rail IncludedYes
Manifold TypeSingle Plane EFI
Rear Height5.50 Inches
RPM Range2000-7000
Throttle Body FlangeSquare Bore
Fuel Injectors
Flow Rate (Lbs / Hr)36 PPH
Fuel Pressure Regulators
Pressure Range35 psi - 65 psi
RebuildableYes (PN 512-1)
StyleMounted on Fuel Rail
Fuel Rails
Inside Diameter3/8" / -6 AN
Fuel Pumps
Flow Rate (GPH)67.3 GPH
Flow Rate (LPH)255 LPH
Fuel SystemEFI
Fuel TypeGasoline or E85
Fuel Filters
Element MaterialPaper
Filter TypeInline
Micron FiltrationPrefilter: 20 Micron / Postfilter: 10 Micron
Mounting Bracket IncludedPrefilter: No / Postfilter: Yes
Outside DiameterPrefilter: 1.94 Inches / Postfilter: 2.17 Inches
Harness TypePower Harness, MPFI Main Harness, v8 Injector Harness, Small Cap HEI Distributor Adapter Harness
Crank Timing
Sensor Harness IncludedNo (Ignition Adapter for Small Cap HEI Distributor Only)
Type1 BAR MAP, Throttle Position (Integrated in TB); Coolant Temperature, Wideband O2 (Bosch) and Air Temperature Sensor; Oil and Fuel Pressure Sensors optional, not included
ApplicationSmall Block Chevrolet, Early to Late Heads
ColorClear Billet Aluminum Throttle Body with Satin Aluminum Intake
Emission Code3
Unit of SaleKit

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Avenger Multi-Point EFI Kit, Small Block Chevy, Early to Late Heads

  • Views: 11888
  • Brand: Holley
  • Product Code: 550-811
  • Availability: Out Of Stock
  • $4,986.00
  • $4,486.95