A tach drive distributor will work with ANY ignition system. You don't have to change that. All you are doing is changing the distruibutor. It can be points, magnetic, a light, Hall effects...or any other trigger other than a magneto.
If you really wanted to piss everyone off, you could find a mag and run that. If I could find one I'd do it. It would have to be cheap, but I'd do it.
And it has to be a Mallory Super Mag III or newer. That would be cool.
