Posted December 25, 200222 yr comment_21564 HO HO HOLY COW. Someone wanna tell me how to hook up an after market tach to this mess? It's a Mallory system, the red tab on the coil is positive.... Good luck and enjoy the new year!! Link to comment https://www.classiczcars.com/forums/topic/4015-aftermarket-tach-hookup/ Share on other sites More sharing options...
December 27, 200222 yr comment_21612 Ah, your missing the red button that was mentioned in another post.Just connect the Blue wire to it and remember Do Not push it [the button] under any circumstances ! Link to comment https://www.classiczcars.com/forums/topic/4015-aftermarket-tach-hookup/#findComment-21612 Share on other sites More sharing options...
December 27, 200222 yr comment_21614 Did the Tacho come with any instuctions? Link to comment https://www.classiczcars.com/forums/topic/4015-aftermarket-tach-hookup/#findComment-21614 Share on other sites More sharing options...
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