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73 2002 help me find my tach wire.


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!973 2002 with pertronix ignitor, red coil and msd 6a. I have a tach adapter but I am having trouble finding this mysterious black wire that should have come from the tach. The only clack wire I can find goes to the (starter?) relay near the coil.

Is there a chance the tach wire is a different color in my car? can anyone help me find the correct wire and help me get the tach working again? do I use the grey wire (tach output) from the msd box?

I am lost...

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It runs from the tach and used to go to the coil and condenser. I have tried running it to the black wire of pertronix ignitor and the tach is a no go. Does the other connector still need to go to - on the coil?

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