I just had a dellorto 48 DHLA set up on my 12A streetport motor. Carter 72gph fuel pump, holley fpr. It was running great yesterday when I picked it up, and this morning when I went to get some cigarettes. This afternoon, after changing the top radiator hose, I got it to start and run, made a run down the street, and then turned it off. However, about an hour later, I tried to start it, and it would turn over and start to pick up, but it wouldn't actually start. I think I might have flooded the carb, I'm not really used to the cold blooded nature of the mighty dellorto. but could it be anything else?