60 Valiant MSD 12v source

mario03srt said

Also, I don't need to do anything with the MSD tach output wire for now right? I am running a old Sunpro Super II right to the - on the coil.

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Run the tach off the MSD tach output wire. When MSD says "This is the ONLY wire you should run to the negative terminal of the coil," they mean it.