JEGS Performance Products#555-40081Distributor Shim Kit
Reduce Cam/Distributor Gear Wear & Improve Ignition Performance
Includes 3 shims per kit that are each 0.032" tall. Special interlocking design keeps the shims aligned to insure accurate height adjustments. Installs between the distributor housing and the manifold. These copper gaskets provides a better distributor ground vs. other gaskets for a more reliable ignition system. Fits GM V8 & 90° V6 engines. Made in the USA.