Holley EFI- 12-884 Double Adjustable Fuel Regulator 4-9 PSI

Holley EFI

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2 Port Double Adjustable Regulator 8 AN Adjustable from 4-9 PSI

Holley's new double adjustable fuel pressure regulators are designed for belt or cable driven pumps where fuel flow changes with engine rpm. These regulators are compatible with E85 and alcohol applications. Made from billet aluminum, these regulators are offered in both 2-Port and 4-Port models to complete your fuel system requirements. The idle adjustment design is strategically placed so that none of the ports are blocked like other designs. These regulators retain the true 2 and 4 port flow. • Alcohol and E85 compatible. • 2 Port models available with 8AN and 10AN port sizes


  • Individual adjustment settings, one for idle and wide open throttle.
  • Fuel pressure adjustability at idle can help prevent flooding at low rpms
  • Wide open throttle settings help to prevent fuel starvation at the top end of the rpm range
  • Alcohol and E85 compatible.
Brand Holley
Color Black Anodized
Emission Code 4
Fuel System Carbureted
Fuel Type Diesel
Inlet Size -8 AN
Material Aluminum
Outlet Size -8 AN
Pressure Range 4-9 PSI
Product Type Fuel Pressure Regulator
Style Double Adjustable
Warranty Limited 90 Day
UPC 090127746196
Part Number 12-884

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