The stock tach from my Tiger worked very nicely with the Pertronix
ignition in a converted dual-point Mallory distributor. Of course, the
accuracy of the tach probably left something to be desired after 40
years, so I replaced it with a tach out of a Series IV Alpine which has
a face which matches the other instruments. I had Tom Hall do the
electronic conversion for about $100 less than what Nisonger wants.
Works beautifully and it gives me a redline (6000 IIRC) somewhat higher
than what you see on the stock Tiger tach which is fine for my engine
with the upgraded cam. At the same time, I replaced the stock coil with
a Pertronix one and did away with the ballast resistor. This setup
works very well for a mildly upgraded engine. If you are using a
higher-performance engine, the electronic conversion offers an input for
solid state ignitions as well, as Theo has noted. If you want to be
really authentic, Jim Armstrong can offer a supply of original Ford
points and condensers from his collection. Jim also offers a DIY on
"Filing your own points".
Cheers,
Tod
B382002384
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