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Bill G · 10-10-2018, 10:33 PM

Check your GAV. You might be running it too lean. Leaning it out will cause backfiring. Another issue I saw on another person's car was some dirt or something in the distributor causing cross-fire to wrong cylinders. In that case a new distributor body and cap solved the problem.

10-10-2018, 10:33 PM	#4
Bill G Senior Member Join Date: Jun 2017 Location: Walla Walla, WA Posts: 1,045	Re: Terriable backfiring Check your GAV. You might be running it too lean. Leaning it out will cause backfiring. Another issue I saw on another person's car was some dirt or something in the distributor causing cross-fire to wrong cylinders. In that case a new distributor body and cap solved the problem.