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My '77 is not starting. I have checked fuel pump relay and it is fine. I'm not hearing the familiar pump sound in rear so am assuming no power to pump. The pump was replaced a few years ago. Anything other than replacing pump come to mind? Thanks!

Well I'd start measuring if you get 12V at the pump. That will tell you if all the electrics are working fine and that it is the pump indeed. Good luck and keep us posted!