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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: Aug 2012 Posts: 1,214 Shop Shark | | Shop Shark Joined: Aug 2012 Posts: 1,214 | Thats not good. My 49 w/a 216 avg's 12 to 13 w/stock 4.11 gearing.
Someone may have changed out the main jet with something bigger (stock would be a 58) or perhaps the choke isn't opening up enough. Course no matter the cause you should be seeing black smoke and soot on the plugs if it]s running to rich.
A sbeen said check the plugs
good luck
Dave | | |
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