Stop in for a cup of coffee

I tried it with both the electric and the mechanical, fuel pressure gauge reads 7-8 cranking with the mechanical, drops to 5-6 as it’s reving. Electric is pushing a steady 10 psi cranking and “running” , it has a built in regulator so I can turn that down if too much
Edelbrock carb? No more than 5# at idle. Holleys only about 7#. I bet the pump is causing the carb to bleed over.