6lb pump blowing out carb?

Yeah, the engine was 180 before I let it cool down, then took it to the shed and opened it up. You could have a point there. How should I check? Seems like if I rebuild it, put it back on the car, start it up. shut if off. take it off and bring it to the shed w/o warming up the engine, that may help find it. Or I can use the vent tube, a 5-1/6" line and fill the bowls off the car, then wait a couple hours and drain the fuel take the bowl off and see....hmm