"If I plumb for an electric fuel pump back by the tank, how do I choose a quiet one?"
You don't. You choose the pump that will do what you want and then mount it in rubber. No part of the pump or lines should touch any part of the metal of the car. Even the lines into and out of the pump, for the first few inches, should be rubber or other non-metallic material. I always liked using muffler hangers, the ones that look like they have been cut from a large semi tire, with the white cotton cord visible and running through the rubber. You get a good electric pump mounted like that and it will be quiet as a church mouse. Also consider that no modern 4-bbl carburetor needs or wants more than 5 psi at the bowl inlet. More pressure than that will overcome the spring in the inlet valve (needle and seat) and allow the fuel pump to blow raw fuel into the intake manifold. This will create a tuning problem that cannot be solved until the pressure is lowered.

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