Recently purchased a couple of Airtex 8012SX which advertise as 5.5 to 9 psi. Once plumbed into the fuel lines when measuring the PSI before the carbs, the fuel pressure gauge reads 3.2 psi. I guess this company must be going through quality control issues:
https://www.summitra...8012s/overview/

I was recommended a Carter 4070LP fuel pump:
https://www.summitra...p4070/overview/


Will this pump provide a steady 4 to 4.3 psi??? I just dont want to be wasting money and effort on cheap non feasible electric pumps