Help me understand my timing please

There is a fair amount of noise on the www about timing light problems with MSD. I don't use 'em so am not familiar.

Some systems seem to have a "bypass harness" (optional?) that may solve the problem

It also sticks in my mind that above 3K the MS goes away, so you could conceivably set for total mechanical time and if you are sure of the dist. curve, "figure" initial by subtraction.

I agree, though the very first step is to verify TDC. If you need help post back