Most BG pump are bench set at 28 psi. I like to run them at 20 to 25 to the reg. Use your bypass on the pump to set this. Then set your reg to carb at 6 1/2 to 7.0 psi. If you have more than 25psi to the reg. you may get creep. Thats where your carb psi creeps up while your not flowing much fuel.
good luck