Holley carb problems

[fire85gslse]

Originally Posted by IH8DSM

See charles said the same thing two years ago we started off at 4 lbs but it would cut out at higher rpms. I'm running a mr gasket pump good for up to 7 lbs. I'm not running a return, but I do agree it is flooding somehow I'll try lowering the pressure again see what it'll do on the 4 port

I would drop down to 3psi and try that. Stay out of high rpm's right now.
The reason you were getting cut out at high rpm's was not your pressure but your volume. You need a high volume pump at low 3-4psi pressure.
The Mr. Gasket one wont do the higher volume if I remember right.