I am looking for information regarding the correct fuel pump for a 1965 Hipo. It is my understanding that the pump is referred to as a "Button Top" and has a secondary spring below the lever arm. I am also aware that button top pumps also came as a single spring pump for standard engine applications. Which pump is correct, a "CARTER" or a "CARBURETER" ? Was the inlet 5/16" or 3/8"? I am assuming 5/16" but have seen both inlet sizes on 65 style (cannister filter) pumps.
Thank you,
Greg