Losing fuel pressure after hot
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i have a question about electric fuel pumps/regulators. this is on a first gen block, so im not sure if im posting in the right section. i have a issue with my pump losing pressure after its warm. i have it set ~8 psi but when it gets hot like operating temp, it will drop below 3 psi, then shoot back up to normal again. i noticed this last night after it shut off after a hard pull on the way home. must have ran the bowls dry. its a demon carb btw. now i havent hooked up the return line, is this needed? and if so does anyone have instructions on where/how to do this? i have searched with no success. thanks.
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its an electric fuel pump. we bumped the pressure up some and it seemed to help, but its still running outta fuel on the top end. any recommendations for an inline fuel pump like a certain brand?