Originally Posted by centerforce99

Doesn't the car already have a tach? Installing a second one would be kind of pointless if you already have one the works perfectly fine. For the track, a shift light might be better.

But if you insist, you have to have an external tach obviously and it has 3 wires, power to the battery, black to ground and green or whatever 3rd color they decided to use that goes to the remote wire in the dist. get a butt kit so you can butt into the dist. wire.