NEW 2 THE F BODY
03-07-2008, 06:28 AM
Hey All,
I have BB 492 with cruise and my vacuum guage drops 5 #'s with cruise on. I assume it's the big diapham that pulls the throttle open. Not 100 % sure but just wondering if that much of a vacuum leak makes engine run lean with that much air pulling from under the carb? I once saw what a missmatched carb gasket can do to 3 pistons on a boat engine. It ain't pretty. Stacey
I have BB 492 with cruise and my vacuum guage drops 5 #'s with cruise on. I assume it's the big diapham that pulls the throttle open. Not 100 % sure but just wondering if that much of a vacuum leak makes engine run lean with that much air pulling from under the carb? I once saw what a missmatched carb gasket can do to 3 pistons on a boat engine. It ain't pretty. Stacey