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Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
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| | | | Joined: Jan 2008 Posts: 4,961 'Bolter | | 'Bolter Joined: Jan 2008 Posts: 4,961 | The governor works with velocity and could develop a vacuum leak and lots of them had governors removed. However a 2 speed, hydravac, stuck pcv valve can also cause a vacuum leak. And of course the normal places that can develop a vacuum leak in any engine. You may just have trash in the carb. I would rev it up and put my hand over the carb and try to suck the trash out. | | |
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