MSD Digital Rev Limiter for GM HEI

You want a no-brainer rev limiter that you can slap on, twist to your class max, and race hard all night? That’s the MSD 8727CT. It plugs right into your HEI distributor, limits RPMs between 3k and 9.9k, logs your peak, shuts down if it loses coil, and laughs at mud and vibration. Approved for IMCA/USRA, it’s tough as nails—and we got 'em on hand, on the truck, and ready to ship.