Supplemental electric fuel pump and regulator rec's

I would just skip the mechanical pump and just run an electric pump with a return regulator.

Just the fact that the pump is in the block, heating the fuel is reason enough to not use one.

I'd agree but this is mostly a street car and electric pumps that aren't mounted inside the fuel tank are noisy as hell. Ideally I'd run an in-tank pump and bypass the mech pump (and ditch this carb for a Holley DP) but for the time being I just want something I can add into the existing system to give it a little boost.