First of all, this is where the wires go
Red- is your 12v power source
Blk- is your ground
White- is your illumination source
Green- goes to your coil
When I had a Tach in my old 2.8 camaro, I mounted it upside down under the center A/C vents. I ran the white wire into the light bulb in the A/C controls. If you have HEI there is a "Tach" terminal on the coil. You hook the Green wire there. If you have a regular ignition, you hook the green wire to the negative side of the coil. The idle speed I think is 800 rpm. I am not sure but I think my redline was set at about 5200 rpm. If u have any other questions, e-mail me, rbltoy@yahoo.com
good luck |