That's not an FPR on the fuel rail. You also only have one line on that fuel rail. So yes, you need the C5 fuel filter to both regulate the pressure and provide a return to the tank. I can't help with your other questions, sorry.
__________________
Trey
Current rides: 2000 BMW 540i/6 and 86 C10.
Former ride: 1979 Trans Am WS6: LT1/T56, Kore 3 C5/6 brakes, BMW 18in rims
|