I put a DUI ignition on my 84 Bronco 4.9L a while back. I love it but I haven't got around to hooking up the tach. Do I just need to figure out which wire leads to the factory tach and hook it up to the dui tach port or is there more to it than that? Any help is appreciated.

 

Yes, that is all there is to it. Super simple. I believe it is a blue wire. Once you isolate it, just connect it to the tach port and your tachometer should pop to life.


I love the DUI in my '81 with the 300 (4.9).