Quote Originally Posted by Roadknee View Post
I'm almost certain 17-18 psi with the stock spring has the spring coil bound. If it is the fuel pressure will not be constant as the fuel demand through the injectors changes and the engine will run erratically. IIRC, BLG355 from this forum installed a 1995 K1500 brake cylinder spring inside the stock spring and was able to get over 20 psi. I think you'll need at least 18 with the cop car injectors (68 pph?) to supply your engine. I recommend you fix your mechanical issue, get fuel pressure squared away and give it another whirl. Unless that air leak is really bad, you might try swapping that rocker stud, reassemble and check compression before tearing it completely down.
Eaglemark has a thread stating EP377 pump with gold spring good for 16-26 psi. Where do I get it?