fuel pressure?

[91 HATCH]

What fuel pressure should i have my regulator set at the engine only has bolt ons and cold intake and exhaust no internal mods

 

[5spd GT]

I am assuming you have an adjustable fuel pressure regulator

Set it to stock fuel pressure setting, of 38-40 PSI with the regulator vacuum line (stock is red) plugged with your finger.

Do it while the engine is warm and at idle

 

[jrichker]

Use the stock pressure for a basic stock engine -38-40 PSI, engine running, vacuum line disconnected from the regulator and capped.

 

[91 HATCH]

ok thanks guys