So, what PSI do you other Edelbrock folks use for your fuel supply? I've heard that they are very sensitive to fuel pressure greater than 5.5 PSI.
I can't comment on the Edelbrocks as I have a fine collection of Carter AFBs I tinker with but I don't even bother running a regulator. The Duster just runs an electric self-regulated pump and the GTX runs an electric feeding a Carter race mechanical. When I was running the 6-pack hood with a fuel gauge I'd see as high as 12 psi which never seems to bother it.