Having a little problem, need help please

[minendrews68]

Randy,
I've talked to 3 different Holley tech's, none seem to have a answer, well, they had a answer, but it didn't work. I took the regulator apart again today and it still looks good inside. The diaphragm is still pliable. I ran air through the bypass back to the tank again, and it seems like it might take a little more than 10 psi to get the air back to the tank. Hopefully I'm on to something.



Andrew,
That makes sense, it's these other things that doesn't... Why I can't adjust the pressure with engine running or not makes me think the fuel is deadheading and not returning to the tank via the bypass. I'm now thinking it's taking too much pressure to get the fuel back to the tank. (at least more than 10.5 psi anyway). Luckily with the engine at idle (gauge reading 10.5 PSI) the fuel is barely coming out of the sight hole with plug removed.
Man, this is crazy. I've read on a few more forums of other people having this problem, but it seems most didn't have the return. Never found an answer though