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Re: '72 Cheyenne K10
Checked the timing today, and it still backfires when you hook up the vacuum advance. I think there is something wrong with the distributor. Timing is 12 at idle (750rpm), but the timing goes wild when you give it any gas and it backfires out of the exhaust.
I ordered an Edelbrock 1906 carburetor today too. I just have to decide which truck will get which carb.
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