small problem with the holley 350 on my slant 6

Was it raining or had you driven in some deep puddles before this? Could be moisture in the distributor, shorting the sparks if that is the case. With the info you provided on the carb having gas, etc, then it seems more likely ignition related since it won't even fire.

Your initial post has a missing word; you wrote: "sometimes shoots out of the carb when too much gas is pressed"

Shoots what out of the carb? Fire? Smoke? Party favors? Bullets?