[jhv48]

If that's the problem, try a plastic one inch spacer under the carb (hope it fits under the hood) should help somewhat but won't completely cure the problem. Mine is there for the first few miles till fresh fuel is circulated and the bowls cool down. Just don't try and blip the throttle at first. Embarrassing!

Some have installed electric fans, others have installed electric fuel pumps with return lines to keep the fuel cool. Others live with it.
Good luck.