Open your hood at night. Some have a circus of sparks from the wires. The alternator is a constant source of spark. The heat just caused the fuel to boil and the fumes are very explosive when the hood is closed.
I'll go along with that. But what I am asking is, how can that happen if the float bowl vent is routed back to the air cleaner? That's how a Holley IS. They have the bowl vents INSIDE the air cleaner and I've never seen one of them explode.......from that. lol