Flow Matched 220PPH Fuel Injector Kit - 8 Pack

220PPH Fuel Injectors - Minitimer Connectors (EV1/Bosch Style)

PART# 522-228FM

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Building on the popularity of our current Holley EFI 220 pound per hour injectors, we are now offering them dynamically flow matched. These new flow matched injectors include dead times matched within 20 microseconds and dynamic flow matching within 1%. The Holley EFI 220lb/hr Flow Matched Fuel Injectors feature a precision lapped disc valve, high-quality brass windings, and high-temp O-rings. These injectors provide excellent linearity with no discernible "bounce" at low pulse widths as commonly found in other injectors. The Holley EFI Flow Matched Fuel Injectors provide precision fuel delivery you can depend on.


  • Minitimer Connectors (EV1/Bosch Style)
  • Low impedance (2.27 Ohms) for use with peak and hold drivers
  • Rated injector flow: 220 lb/hr @ 43.5 PSI
  • Supports over 3000 horsepower
  • 4 Hole Orifice - Pencil cone spray pattern
  • Maximum recommended fuel pressure: 75 PSI
  • Dynamic Flow Matched within 1%
  • Injector Dead Times matched within 20 microseconds
  • Injector Off Time provided in the Holley EFI software


Body Diameter0.970
Body Length75mm
Body StyleEV1
BrandHolley EFI
Connector SeriesEV1 - Jetronic - (Bosch Style)
Emission Code4
ImpedanceLow 2.27 Ohms
O-Ring to O-Ring60.44mm
Overall Height75mm
Product TypeFuel Injectors
Rated Injector Flow220 lb/hr
Part Number522-228FM


This part is legal for sale or use on Racing Use Only Vehicles

The following vehicles are considered Racing Use Only Vehicles:

  • Racing Use Only Vehicles are vehicles that are used exclusively for competition 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

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