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Discussion Starter · #1 ·
I just installed a SS dash in my 1970 Chevelle SS clone. The car has a MSD ignition system. My question is which terminal, (+ or -) does the stock tach lead go to? I had an aftermarket tach before and I had to run it to the positive terminal in order for it to work. I just don't want to burn up a $200 component.

1968 Camaro RS
1972 Chevelle SS clone
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