dag8501 Posted May 3, 2023 Report Share Posted May 3, 2023 What would cause a difference in timing from one cylinder to another? The flywheel doesn't have any rattles or sound like it is full of sand. The motor in question is a drag ported cub on alcohol. Timing was fine at 10.5 but once raised to 11 the left cylinder looks much hotter based on a plug check. The plug was also starting to rattle out of the head. Any input would be greatly appreciated. Quote Link to comment Share on other sites More sharing options...
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