I know this is not MM related, but I thought I'd share my experience for those of you with older Fords. My dissatisfaction for this Crane ignition conversion for points systems came during the mechanical portion of the installation on my '68 LTD 390. The replacement points plate, while a good concept, is not a quality design, resulting in both excessive play in one regard, and binding in another. I never had the car running with this system. A shame though, I like the ability to have a rev limiter. I could design some enhanced parts, but time is always short. So I will exchange for a Pertronix system, which I have very good experience with.
TP