I recently took my distributor out, put it on the machine and set the dwell to 28deg. Now when driving I get pinging during acceleration. I've moved the timing from 12 deg advance to several lower setting but it dosen't change. Still pings! Any Ideas? Maybe just some low octane gas? Chuck in NH

Y's guys rule!
Looking for McCullouch VS57 brackets and parts. Also looking for 28 Chrysler series 72 parts. And early Hemi parts.

MoonShadow, 292 w/McCulloch, 28 Chrysler Roadster, 354 Hemi)
Manchester, New Hampshire