ok i have 89 civic h/b wit a b18b i have a golden eagle fuel rail,fuel presser reg and a 255 fuel pump,i wanted to know what the stock fuel presser is for a b18b,and what should i set it at,should i set it at stock or should i change it. what would be the best fuel presser,thanks

 

I would set it at stock and leave it that way. Unless your motor is upgraded with internals and a chipped ECU, go get it tuned. The tuner should do the rest with fuel, timing, etc.

 

42 psi if im not mistaking