The original 283 in my 58 Spartan 80 was replaced in the 1970s by a former owner. He replaced it with a 1964 283 from a full size car with its (rebuilt) 2 bbl Rochester carb. Runs great, like a sewing machine, but when I head out the driveway, when it is still cool but not cold, with choke off, it sputters and dies, requiring lots of clutch nursing. Once fully warmed up, it is OK. Should I be looking at a 4 bbl as was original.....or maybe I need to keep the choke on halfway for a while longer? I'm starting out in 2nd, not granny gear (New Process 5-spd). I'm not carrying a load. As usual, I am seeking your advice....thanks!
