I have been running carters/edelbrocks for over 30 years almost exclusively and never had a flooding problem when using stock style fuel pump.
The OP probably has a sunk float or trash in the needle valve.
Yeah,I’m sure you’re likely right. I ordered a rebuild kit online for it and plan on taking it apart and cleaning it when I’m off work.
I appreciate all the advice here. It’s good to hear others say that the mechanical pumps should be fine without a regulator.
My car does have a mechanical pump it’s a Delphi mf0010 the specs say it’s 6psi max.