Rehang Electric Fuel Pump, or Replace With Mech Pump?

[Feldsine]

Looking for a little advice. It's a 69 C10 with an 89 350. Got it with a a Summit electric pump, that is driving me crazy with all the buzzing. Everyone laughs at me when I drive by. It is attached inside the frame rail using the thin little rubber pad to isolate the buzzing. NOT! It has an Edlebrock carb with a separate pressure regulator down to 5.5 PSI.

Trying to decide if I should unattach from the frame rail and try to hang it from a couple rubber straps, like muffler straps to quiet it down, or junk it and get a mechanical pump.

I'm assuming this engine came fuel injected, as there is a plate over where the mechanical pump would go. Reading the forums, the 89 engine would accept a mechanical pump....? If so, I believe that I would need a 2 port pump, not a 3 port with a return line to the tank, right?

Thanks!