Cobalt Tach Install, Help!

[mgradle]

Hi, I recently purchased a Autometer Cobalt tach for my 95 z28. I was trying to figure out the best 12 volt ignition supply to use for the red wire and where I should go with the green wire ignition? Any help is appreciated.

[Zboner]

hold on i know this one

[mgradle]

Also, looking at the illumination diagram would I have to splice into the grey or black wire to make the tach light up when the headlight are on?

[Zboner]

ok how many wires are on it??

red=power
white=light
black-ground
green=ignition >>i think??

[mgradle]

Right! The green is suppose to go to the coil and splice into the white wire, but I can't find the coil. It is suppose to be on the drivers side by the head. I think it is under my cold air intake?

[Zboner]

i dont really know much about the ignition on the LT1 cars all i know is that opti is a bitch and a half man, sorry