[joeydurango]

If we're talking about rebuild or SeaFoam (or maybe rebuild then SeaFoam for the heck of it), here's one more piece of info to add: I've adjusted the carb with a vacuum gauge, and didn't need to bottom out the mixture screws in either direction. But I know this truck has been at sea level for at least a decade. I live at 6500' and routinely drive up to 8-10,000' - how would I know if I needed different metering rods? Up until the other night, it drove pretty well. If I knew that things needed to change on the carb for proper setup anyway, I'd probably just tear it down.