oh yeah, ditch the mechanical pump if it doesn't fit. install an inline pump on the frame rail along with an inline filter. some basic units are pretty cheap, easy to connect and hook up electrically. just be sure to fuse the power at the source and connect to an oil pressure switch so it quits when the engine shuts off. install a "fuel pump prime" switch so you can prime the carb if needed. also run a relay. I included a link from motor trend that shows how to wire an oil pressure switch, from back in the carbed days, so it will power the fuel pump when you crank the engine and then as long as the engine is running and producing oil pressure the power stays on to the fuel pump. if the engine dies then so does the power to the fuel pump.
https://www.holley.com/products/fuel...ic_fuel_pumps/
https://www.motortrend.com/how-to/sa...l-pump-wiring/