Sup Brotha's, im going to be taking my plenum off here this weekend because I need to replace the diaphragm in my fuel pressure regulator. Its ripped. Anyway I have a fuel pressure gauge from an old nitrous kit that I have been wanting to install and now would probably be the best time. I need to know what size fittings I need to get onto that "nipple" on the fuel rail (place used to test fuel pressure) so that I can install this gauge. Anyone know what I should use? (I know its not called nipple, but its name escapes me right now)

Okay, I know the right question.

What is the size of the schrader valve and is it metric...etc ?

I dont know where you can get the plumbing at. Like i said i got it from the gauge that i bought.

For a tip though, make sure your fuel rails are completely dry before you start this. You have to relieve the pressure before you try to put the plumbing on. Ohh and ftw, you also need a decor-er or a core remover to get the schrader core out of the fuel rail, that way you can take a reading. Good luck.

-3rd

i thought it was like an a/n #3 or 4 i thought