[dicklague]

Is the rotor alignment OK? I think you sort of locked things down in a middle advance position.

Have you thought of going to a crank fired sensor? Seems to me that would be the way to go so you don't have to worry rotor alignment problems.

I have just installed a Daytona-Sensors CD1 in my 1973 and love it, but I using the mechanical advance because rotor phasing really bothers me.

the CD1 can be programmed even for retard under boost with the MAP sensor hooked up.

Doe the MSD log data? Can you study the RPM, Advance, MAP with charts? Just cuirous.