Chevy Cam Sync Distributor, Hall-Effect, Standard Cap Hall-Effect Sync Pickup. Must Be Used With An 6, 7 Or 8-Series MSD IgnitionThese MSD Distributors feature an adjustable cam sync pickup so you can set it to your ECU's requirements (up to 60 Degree BTDC). Each model is equipped with a slip collar, iron gear and an adjustable rotor to help set phasing! Some aftermarket EFI management systems fire the fuel injectors in the same order as the engine's firing order. These are called synchronization systems and are found in most high performance applications. These systems require