I wanted to know if someone could help me out and tell me everything i need, Including what gauge, To have an underhood fuel pressure gauge. Also where do i hook it up in the fuel rail?
Well, just get a mechanical gauge, and tap it on to the shrader valve on the fuel rail. Summit makes a fitting that screws on the shrader valve which you attach the hose for the gauge to. Then just mount the gauge wherever you feel like. Any mechanical fuel pressure gauge will work.
you can do what they said but because i don't have a shrader valve i got a fuel rail block that goes under my fuel press. sensor on my driver side fuel rail and it has two ports one for a gauge and one for something else but i'm gonna use it for my fuel line for the spray later on