[Fostang]

pressure is at 40 psi vacuum disconected.

32 psi with vacuum connected.

Pressure bleeds off fast.

I tried building pressure and pinching the return line then the main line. It held pressure longer while pinching the main line. Therefore I'm thinking its the check valve in the pump. Or a leaky injector? Is their any feasible way of checking to see if there is a leaky injector somewhere? I was thinking imbalance test but how would I be able to unplug the 6,7,8 injectors?

Also about this system had to use a speed density computer for now till I catch a deal on 76 mm mass air. I have a conical filter, intake has been port matched upper-lower lower to heads, Intake tb was oppened for a later install of a 65mm tb, the exhaust side was ported, long tubes with H pipe exhaust all the way back, no cats, 1.77 rrs, no smog pump, timing is at 14, tps is at .96, egr is functional, no canister and the purge valve was pluged.

Just a little basic info about the engine to help you understand what might be the problem and hopefully give me some ideas.

PROBLEM- Car starts up, idles nicely, then begins to surge 1-2 minutes after start up wether it's warm or cold. The surge happens about 5 times between 600-1000 rpms and then idles fine as if nothing were wrong just a smell of raw fuel out the exhaust. Does it again if I turn it off and immidiatly restart it.

Sorry about the long message just trying to get it tunned right. So I can start appreciating all the hard work.