Holley 750 "stumbles" on WOT

With the crappy ethanol based fuel we are running these days, it's a wonder we don't see carburetors rotting from the inside out. If the car isn't run to operating temps almost every day, the fuel absorbs moisture from the air. I suggest running a fuel stabilizer, at least that way the fuel doesn't turn to s**t if it sits for a few day between outings.