I just got a new timing light today and I will be setting my timing and checking advance. I was thinking that I have the MSD6a ignition with pertronix ignitor and
I can't remember how I set it last time with the msd system.
Will the multiple sparks give me a false reading?
Anyone that can remember how they did this, please let me know.
Thanks, Dave

i used a gool ol' Sears light with an inductive pickup - worked fine ...

now if i could just get my factory (911) tach to work with the MSD 6-AL ...