how do i hook up an aftermarket tachometer.

[yotadork83]

i am trying to hook up a tach to this type of coil and i dont know which wire to tire into. to make it work.

[KYOTA]

either 2 on the right in your pic.  I used the one in the middle but the one on the right works too

[crawlerdan]

i am trying to hook up a tach to this type of coil and i dont know which wire to tire into. to make it work.

there is a plug on the side closest to the firewall that is the tach lead, if you dont have a factory tach, use this, if you dom tap into that same plug

other than that-black goes to ground, and white goes to switched power with the red wire as well