total timing reading accurate with no load?
You can go with Don's method, but I can't help you there.
Chrysler timing should look something like this on a stockish 4 bbl engine
if you check the Rockable thread linked before, you can see my plot of a MP distributor on my engine.
and mild 2 bbl 318 more like the non-CAP timing shown here
At idle the mixture should be relatively rich (assuming emissions control is not goal, but economy is)
therefore no vac advance at idle.
There should be vacuum advance when driving on the highway that brings the timing to roughly 50* BTC
see
How To Limit and Adjust Chrysler Vacuum Advance Cans
You can go with Don's method, but I can't help you there.
Chrysler timing should look something like this on a stockish 4 bbl engine
if you check the Rockable thread linked before, you can see my plot of a MP distributor on my engine.
and mild 2 bbl 318 more like the non-CAP timing shown here
At idle the mixture should be relatively rich (assuming emissions control is not goal, but economy is)
therefore no vac advance at idle.
There should be vacuum advance when driving on the highway that brings the timing to roughly 50* BTC
see
How To Limit and Adjust Chrysler Vacuum Advance Cans