Fuel Pressure Regulator

F1 Adjustable FPR  This Fore F1 fuel pressure regulator by Fore Precision Works features dual -8 AN feed ports, a single -8 AN return port, a Flourocarbon / Nomex diaphragm, a 1/8" NPT fuel pressure gauge port, and a 1:1 boost pressure reference(unlike a rising rate regulator). Other features include chatter free operation and full adjustably from 25 to 70 PSI. Works as part of a fuel system on a car with a supercharger (or other... 

F2 Adjustable FPR Fore's F2 adjustable FPR gives you all of the features of the F1 regulator and adds a Stainless steel valve seat, a three year warranty, a darker anodized top, and includes a mounting bracket. The stainless valve seat increases stability and extends the regulators life(hence the longer warranty). Just like the F1 the F2 has dual -8 AN feed ports, a single -8 AN return port, a Flourocarbon / Nomex diaphragm, a 1/8"... 

F4 Adjustable Fuel Pressure Regulator Fore's F4 adjustable FPR gives you all of the features of the F2 regulator but it has four inlet ports(dual -10 AN and Dual -8 AN) and a -10 AN return port. All of those connections makes the F4 capable of regulating the pressure of even the most ambitious racing fuel system. The stainless valve seat increases stability and extends the regulators life(hence the 3 year warranty). Just like the F2...