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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!
Lots of work on Brad's part ... pure enjoyment (and references) for you!
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#58579 03/31/2006 6:37 AM | Joined: Jan 2001 Posts: 5,337 'Bolter | | 'Bolter Joined: Jan 2001 Posts: 5,337 | Mike, it sounds like the base gasket may be blocking the power valve port. Most of the gasket sets have the wrong gasket for the earlier carbs. If the port/ hole is blocked it will run rich, also good for about 4 mpg. You can notch the gasket to expose the port to vacuum.
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