i have a 88 civic 4 door w/B16A, skunk 2 cams, skunk2 intake manifold, aem cold air, msd ign., msd wires/dist., nos 75 shot wet nitrous, 2 bottle nos setup, act clutch, act flywheel, dc sports header, 2 1/4 custom exh.,jg adj. timing gears, ngk plugs, aem fuel rail, aem fpr, bbk fuel pump, what should my fuel pressure be around. i have it at 43psi and the car is still running lean. can i push it past 43psi?

 

yeah, a little past that should be fine. if you go too much you can blow out the seals in the injectors. you probably need a piggyback though.

 

whats a piggyback? ecu upgrade???

 

kinda. its a computer that tricks the stock ecu into running the air fuel ratios you want.