Quote:

We leak checked all 8 cylinders and they were all under 3-4% leakage. It only pops when you rev it up and idle is glass smooth. Like I was saying, we've checked pretty much every parameter of the engine that could be a problem. The only thing that is still the same is the fuel delivery system which is the stock in-tank pump with a mallory adjustable bypass fuel regulator, and it is set to 6 psi at the carb.



Next question... does it only do it at temp or cold
or both... is the vent on the tank clear... also
is your gauge mounted under hood.. if so.. is that
gauge liquid filled..if it is.. drain it.. that type
of gauge will give you bogus reading when hot