yes, freeze the rotor with the light while idling with the can hooked and unhooked & see how far the rotor swings between the two. then at 2500 with the can plugged in, get the timing where it was when it was missing, then unplug the can/cap the carb nipple & twist the dist to get the timing back to the same #/same 2500 RPM & see if it misses or not.
I'm getting started on this this morning. I did some reading on rotor phasing on the small block distributors last night, and it's said that since the small block distributors spin clockwise you should always start with a slot That's machined after a reluctor tip. Ether 5-10-15 degrees after a reluctor tip. I'll report back soon with my findings.
