Holley/Demon Carb stumble
I had a similar problem quite a few years back, only occasionally it would flood after the hicup. Made it impossible to race. I took the carb apart and my rear float was not moving as freely as I liked, so I replaced the float and added jet extensions at the same time. No issues ever since.
Edit: Just reread...my issue was not really the same, but I'll leave this here all the same.