I didn't search the PN's (did you?). For that price, probably the oldest Ignitor, which requires you keep the ballast (unless you get a coil w/ built-in resistance). You can find manuals online.
I would only fool with the later models that lose the ballast and can run a better e-core coil - Ignitor II (~$110) or recent Ignitor III (~$140, adds MSD and rev limiter). I put a cheaper (maybe better) "roll my own" HEI on my 64 slant.
