jgonzo
Active member
So I did the basic rebuild on my 2100 2 barrel for my 72 351c motor. The car has been sitting since '99 and all the gaskets leaked like a fountain. The rebuild, or should I say the parts and gasket replacement, went fine. The car runs out good, choke works good and no leaks. The issue I am having is that I can't give it any gas without a carb backfire. There isn't much adjustment with these things so I'm not really sure what to do. The mixture screws are at 1 1/2 turns out according to the factory manual. They were at 3 1/2 out and that's the way I ran it at first because I just matched what it was before the rebuild. I thought maybe that was the issue but it wasn't. Any help would be great..........jim