The temps were only in the 80's this weekend so I decided to give the Coronet a bit of a roadside tune. I set the timing so it would ping and then started backing it off until it stopped. Hooked up the timing light and found it was 14 degrees BTDC so I moved it to 11 degrees and it has MUCH better response to the throttle. The factory setting it 2 degrees ATDC, a HUGE difference and it runs much better.
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Drove it to a show in Tucson Saturday and it worked great. The guys on the Small Block Mopar Facebook page say 12 degrees BTDC with about 34 degrees total advance range is perfect for these engines and I tend to agree.
Love this Plymouth.
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