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Old 03-12-2011, 12:51 PM   #5
fixit-p
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Join Date: Dec 2008
Location: Yay Area CA
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Re: How Do I Connect Painless Wiring Kit To Factory Repro Tach

Here's an image of a labeled factory tach, the coil wire goes to the tach port on the HEI cap, the 12v port goes to an ignition source and the housing provides the ground through the dash.
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