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Old 10-14-2019, 04:06 PM
many birds many birds is offline
Senior Chief
 
Join Date: Mar 2014
Location: Huntsville, AL
Posts: 274
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Tried monkeying with it again this morning. Bottom line, no luck.

I bumped the base timing to 17 degrees. Reset the idle and mixture screws. Idled ok, about 12 inches of vacuum and 9 in drive. Excellent throttle response off the line, but mild pinging on moderate throttle (top of the primaries, not into the secondaries on the q-jet). Hot starts were ok, no worse than before, but I don’t want any pinging.

I have backed it off to 13 degrees now. It really likes something closer to about 10 degrees at idle, but that makes it sluggish everywhere.