I have a 1972 gmc3/4 ton longhorn pickup that just drinks gas. The carb is set to specs the timing is on however it constantally pings it is a 350 eng with a 350 trans can you help it is also a 4 barrel carb and I dont drive it hard
have the same problem?
Wednesday, November 21st, 2007 AT 5:14 PM
Are you overheating? Find the EGR take it out and clean it and make sure its. Inoperative EGR will cause your engine to detonate/ping.