Trying to help my freind Lonnie diagnose his carb over the phone. It's on a healthy 327 in his '55, carb is Quick Fuel 4v, vacuum secondary, 650 cfm, dual feed. It's dialed in perfect, no problems there untill he shuts it off. Won't start untill you pump the crap out of it. I had him take it out, run the crap out of it, and if every thing else was fine (bottom end, midrange, high rpm, idel at stop light) take it home and pop the air cleaner off and check for the vapor smoke (flooding). He did, all was fine, and no flooding. Also had him check the accelerator pump, squirting fine. 11.5-12.5 voltage to H.E.I.while cranking.
I might add everthing is new ( including new distributor assy complete.) He has changed out the manual fuel pump, added a new electric fuel pump at the tank, has a fuel pressure reg also. If the engine is cold, starts right off. Also starts fine after sitting for an hour or so.
Any idea's? Thanks