Four Port Adjustable 4 to 9 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! Holley 12-865 4 Port VR Series Fuel Pressure Regulator. 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. Designed for use with the Holley VR1 and VR2 Series Brushless in-line fuel pumps. 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. ATV, UTV, Motorcycle & Marine. Audio & Mobile Electronics. Books, Literature & Videos. Engine & Engine Components. Lifestyle, Clothing & Memorabilia. Oil, Fluids, & Chemicals. Tools & Shop Equipment. Trailer, Towing & Winches.
