I'm half hoping my MSD system will give up the ghost so that I can buy the Pantera Electronics Ignition System (PI Ignition System) - doesn't need a tach adaptor, and has a raft load of cool features (Rev Limiter, Timing retard at startup ... if I had an electric choke or electric fuel pump or working A/C, it's got some bells and whistles to manage them too).
However, if the Tach adapter is your only issue, it may be a stretch to justify the extra $$ to get the PI solution in the short term.
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