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tachometer

  1. Parts place hood tach

    Hotrodding Basics
    Anybody know how to wire a parts place hood tach? I bought one a year ago and never had a chance to install it and I realized it didnt have a wiring diagram. I plugged the red thing into the power part on the distributor and that didnt work. then i cut the red thing off and wired it directly to...
  2. Tachometer trouble

    Hotrodding Basics
    The tachometer I put on my 1978 GMC truck is acting up. When the truck is idling, the tach will be pegged out, then when I rev the truck up, it will drop down to zero RPM on the tach, then at highway speed (around 60 MPH), it will say somewhere around double the RPM it should be running. Tach...
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