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Need some advice

600 views 4 replies 3 participants last post by  wbrockstar 
#1 ·
i have a 1991 mustang gt 5.0 with
MSD 6AL-2 Ignition Box Module [6421] [2-step]
MSD 5.0L Pro Billet Distributor [8456]
MSD Blaster HVC,coil [8252]
already installed , i just bought a tach adapter 8920
and a Autometer Phantom 5" tachometer 5899
i have read all i could , now i would like some real world know how on wiring and setup from you guy if you would please......
 
#2 ·
White Wire- 12V Dash Lighting. Run this one to the headlight switch. You can use a test light or multimeter to find the correct wire to tap into.

Red Wire- 12V Key Power. I run this one to the ignition switch. Again you can use a test light or multimeter to find 12V key power and tie into it. I don't remember which one it is off the top of my head.

Black Wire- Ground. Run it to a good known ground. Should be able to find one under the dash or on the steering column bracket.

Green Wire- Tach Signal. Tach signal will come from your ignition box and should have a place on it for you to connect or run the wire to.
Hope this helps. Good luck!
 
#5 ·
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