Holley 12-864 VR Series 4-Port EFI Fuel Pressure Regulator

Holley 12-864 VR Series 4-Port EFI Fuel Pressure Regulator

Holley EFI

  • $348.95
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Four Port Adjustable 40 to 100 PSI Boost Reference 1:1

The Holley VR Series billet fuel pressure regulators are part of the VR1 and VR2 Series brushless fuel systems product line. These regulators can support 3000+ horsepower engines that require high volumes of fuel flow. Both EFI and carbureted versions can be referenced on a 1:1 ratio. They are precision machined from 6061-T6 billet aluminum for strength and durability and feature a black bright dip anodized body and a clear bright dip anodized top for corrosion resistance and good looks. Offered in 2 port and 4 port versions for carbureted or EFI pressures, Holley has the regulator to cover your needs!


  • EFI regulators are adjustable from 40-100 PSI base pressure
  • Carbureted regulators are adjustable from 4 to 9 PSI base pressure
  • Compatible with gasoline, methanol, and E85* (Compatible with
  • 1/8” NPT gauge port
  • Designed for use with the Holley VR1 and VR2 Series Brushless in-line fuel pumps
  • Can be referenced on a 1:1 ratio – includes a barb fitting and a -4 AN fitting for reference connection
  • 2 port regulators feature a 10 AN O-ring inlet/outlet and return
  • 4 port regulators feature a 10 AN O-ring inlet and return with (4) 8 AN O-ring outlets
Brand Holley EFI
Color Black Anodized
Emission Code 4
Fuel System EFI
Fuel Type Diesel
Material Aluminum
Pressure Range 40-100 PSI
Product Type Fuel Pressure Regulator
Return Size 8 AN O-Ring
Style EFI
Warranty Limited 90 Day
UPC 090127731208
Part Number 12-864

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