I did alot of reading on installing nos on here. I just want to make sure I under stand it. I have a 1989 firebird formula 350 with the L98 350. I'm going to install a wet system. I check the fuel pressure last night and I had 37 psi and with the vacum line pulled 43 psi. Pressure was checked at idle. Is that enough pressure to run the wet system?

 

Yup. Have fun.

 

Yes,
You can actually run nitrous with any fuel pressure.
The jetting is determaned by fuel pressure.
When a customer calls us we ask what car its going on.If we do not know the fuel pressure for that car that is the first thing we ask them.
Dave