I'm trying to find the stock fuel pressure (PSI) for my 95 JDM H22A Swap. My stock injectors were bad, and I was given a set of DSM eagle talon turbo injectors (450cc i think), but I am not boosted so I am running too rich now. I want to install an adjustable fuel pressure regulator with a built in gauge, but I need to know the stock fuel pressure as a reference, so I can adjust it to that psi, then lower it from there until I am stoich. I already have an Air/Fuel Ration gauge installed, so it should be pretty easy to adjust it. Thanks in advance guys.

 

Can anybody help me out here?

 

stock is about 41-43psi no vac.