What will cause my float bowls to go dry

Demon499 said
If you let the car sit for a half hour and then restart it, it just runs really poor. It seems like its really rich.
If you have had this problem please let me know.

Umm, maybe the carb is leaking fuel?
Black and eye watering smoke/fumes out the tailpipe?
Is your oil level going up and it smells like gas?