One of the challenges of this conversion was to index the contact rotor (which carries the secondary coil voltage to the appropriate spark plug wire post) properly so that it is adjacent to an internal terminal post when the coil fires. Seems it’d be tough to figure just where the rotor was while setting things up so I made an inspection cap with a hole hogged out (technical term) in it. This made things much easier. Not a scribed line on the rotor and reference marks in yellow on the cap. This allowed me to check rotor phasing while the motor was running with a timing light after all the other work was completed.