Tach Adapter Wiring

Using a Rally Pac with a MSD Ignition


When using a Rally Pac or aftermarket tachometer with a MSD Ignition, you need to use a tach adapter to prevent damage to the tachometer. The following diagram shows how to wire the tachometer, tach adapter and ignition together.

MSD Tach Adapter

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* Please be advised that this information is for suggestion only and is based on prior experience. We at CJ Pony Parts can not be held responsible or liable for any mistakes or injuries connected with the topics covered.