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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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| | | | Joined: Feb 2008 Posts: 85 Shop Shark | | Shop Shark Joined: Feb 2008 Posts: 85 | Sounds like you are running slightly rich on the mix and you are getting unburned fuel through the system that is igniting in the exhaust system. Fairly common with glasspacks as they tend to run a little hotter than a standard muffler. Try backing off on the fuel mix a little and see what happens!
Laterz,
Gator
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