car wont start

a carter fuel pump for a carb engine. my problem is a bought a fuel regulator I turned it all the way down and according to my fuel gauge I'm still at 20-25 psi I don't know what I else I can do , everything is new ( even the fuel lines ) ?

You can find out if the gauge and regulator is right and get rid of that pump if they are.
Probably have to change your oil and filter as well if the gauge is right, because it's likely 25 psi not only flooded the hell out of your motor keeping from starting, but filled your crank case with gas.

Oil level too high or smell bad of gas?