MSD Tach Adapter
When installing an MSD ignition control on your 1979-1985 Mustang and the tachometer, fuel pump relay, and electronic fuel injection isn't working, you may need an MSD tach adapter. This is due to the trigger signal not being strong enough to trigger both the MSD and the factory's components. This adapter is a quick and easy to wire in and will have your tachometer working great again! The PN 8920 will correct the operation of most voltage-triggered tachometers that do not work directly off the tach output terminal of the MSD Control. This Adapter should also be used on current-triggered tachs (hooked in series with the ignition switch).
MSD Ignition products are the finest ignition components you can install on your Mustang or SVT Lightning. Whether it's a daily driver, Road Racer, a seven second Pro Stock car or Big Foot. MSD is your exclusive performance ignition company and we thank you for your interest and support. Latemodel Restoration has you covered with MSD ignition kits, ignition boxes, distributors, coils, and other high performance ignition components.