Installing a Tach
Registered User
Joined: Jun 2002
Posts: 481
From: Clarksville, IN
Not hard at all. Even easier if you have an MSD box or other ignition box with a tack output. There is usually just a power, ground, light and reference wire (for the actual RPMs). If you do not have an ignition box, the reference wire hooks to the negative coil wire.
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