Craig, Thank you. Was your dad's GMC the one with the big V6? The Q-jet, some many hate them, but they are a great carburetor. It just takes time to learn them, and I am still learning them.
Shane
Shane's Toys... 2007 Forester XT Limited (2nd Owner) 1991 Cherokee Laredo (2nd Owner) 1981 Chevy 3/4 Ton Fleetside 8,600 Camper Special (3rd Owner) 1965 Chevy 3/4 Ton Fleetside (3rd Owner)