Whatever fuel pump you get, do not exceed 6.5 to 7 pounds of pressure. Exceeding that will blow the needles of their seat and the carb will constantly flood through the vent tubes. Most people use the Holley Blue Pump and a regulator. This seems to be a good combination. It worked for me with a 69 Cougar Eliminator with a 351C and an 770 cfm Holley. It fed the engine quite adequately.
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