MSD's cam sync plugs are the perfect solution when running an aftermarket sequential EFI system with coil-per-cylinder ignition. The cam sync plug installs in place of a traditional distributor, providing a hall-effect cam sync signal needed for the EFI system to reference the # 1 cylinder. For wet sump applications, the plug also drives the oil pump. MSD's cam syncs are plug and play with Holley EFI systems and can easily interface with most aftermarket EFI systems. Built-In LED Makes Set-Up And Indexing Quick And Easy CNC Billet Housing w/Black Anodized Cap Compatible w/Other Aftermarket EFI Sys. Requiring Cam Sync Signal Plug-N-Play w/Holley EFI Supplied w/Steel Distributor Gear Additional Attributes: GTIN: 00085132852215 Distributor Gear: Steel Distributor Type: Cam Sync Plug Engine Make/Size: Ford 289-302 Sensor Type: Hall Effect WARNING CA Proposition 65: Yes WARNING CA Proposition 65 Message: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov Packaging: Quantity of Each: Package UOM: Dimension: 5.0000 x 12.0000 x 5.0000 inches