Originally Posted by STROKD
They are USUALLY 500 off reading higher than what's actually happening... I have my MSD provide the tach signal instead of the stock ignition, and its wired back to the stock tach. Its within 100 rpm now on the low side... 7200 limiter hit right about 7100-7150 on the tach. The vert is setup the same way. Much better looking than a huge 5 inch tach that doesnt fit on the tiny dash setup, and you get a better ignition to prevent misfires and increase mpg at the same time.
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This sounds like a fantastic idea. Any tech article on how to do that?