the idle surges from 2-3k then it will fall off and die. if you put it in gear it dies instantly. this has been going on for a long time. this was the main problem while i was racing it. i had a carb pro here rebuild it back to "out of the box" status and still same problems i am done. i actually had very good luck with a demon 650 on dads old red nova with a 355 put it on there and never had to touch it. so what would anybody recomend? quick fuel? willys? predator? demon? or just get a good old fashioned holley 750 dbl pumper and go from there!?