4cyl tach to 6cyl tach

[Tafnar]

Now im pretty sure I got a 6cyl cluster, because I just rebuilt my motor with a very aggressive cam and its maxing out at 4.3k, when a stock 22r can pull up to 5k. So I figured i got a 6cyl tach because its looking for 2 other pulses, and since it doesnt read them, im getting a lower rpm than i should? Anyone help me solve my problem?


And if anyone has a 4cyl cluster with a tach they want to get rid of or trade straight across for my cluster?