MSD 85221 CAM Sync Plug - High Performance Engine Synchronization Sensor for GM LS Engines - Perfect for Racing, Tuning & Engine Upgrades

MSD cam sync plugs are designed to install in place of a traditional distributor when running an aftermarket sequential EFI system with coil-per-cylinder ignition. The cam sync plug provides a hall-effect cam sync signal that the EFI system needs in order to reference the 1 cylinder. These plugs contain a steel distributor gear and they drive the oil pump in wet sump applications. Cam sync plugs are plug-and-play with Holley EFI and compatible with most aftermarket EFI systems.

Built-in L.E.D. makes set-up and indexing quick and easy

Plug-and-play with Holley EFI and compatible with other aftermarket EFI systems requiring a cam sync signal

CNC billet housing with black anodized cap provide good looks and excellent durability

Supplied with a steel distributor gear