Not sure if my question should be a new thread? On behalf of a friend, fellow NNVI Inliner working with a stock computer, Vortec 4.2 in a 70's pickup trying to connect a tach. Any advice on aftermarket tach or junk yard tachs that would work with the tach output on stock computer? Hope I have worded this correctly? Understand that the signal from the computer requires some "translation". Hope someone's. "...been their done that" ?
