Holley 350 can stall out under certain driving turns.
I can try lowering the float level and see if that makes a difference. It is only in this one location, with the bump down to the street, hard left, and accelerate that it has ever happened. The carburetor is new with only about 500 miles on it, completely new fuel system, pump, filter, etc, with 1800 miles or less. I'm not saying there couldn't be dirt in there somewhere, it's just not like this fuel system has been on the car for 20 years.