It does sound like a vacuum leak. One way to check for a leak is to spray carb cleaner around your gasket area. If the truck's idle picks up, then it is sucking the fluid in at that leak point.




SWEET
Sergeant At Arms: Old Dominion Stovebolt Society
BUNS?!?!?!Where we're going, we don't need no buns.....
1950 GMC 450
1951 Chevy 1/2-Ton
The GreenMachine
In the Stovebolt Gallery