[ZEKE68]

Edelbrock's own 110 gph mechanical fuel pumps are advertised as putting out 6 psi. and they say that a fuel pressure regulator is not required in most cases. That sounds to me that they think that their carbs will run at 6 psi. Edelbrock carb manual says don't run more than 6.5 psi pressure. Every situation is different though. The regulator may fix it.