Have a early 83 z-24 motor runs fine than suddenly coughs,pukes,sputers sit along side of road over reving it for couple min.then fine for the day. already changed filters and pump and full tune-up so what else other than shooting it???:confused:

My old Ford Courier used to do that, It ended up being a sticky choke.

Nope checked that even cleaned ,did small rebuild on it and ran cleaner thru gas tank.Thanks tho