ADJ RACE ROTOR,EFI,MSD DISTRIBUTORS

Brand New MSD Rotor Phasing Kit for MSD Distributors (Part #84211).

When you install EFI on your engine, most systems will require the ignition timing to be advanced for the ECU. This can cause issues with rotor phasing, but the Adjustable Rotor remedies this issue!

You can view and download the assembly/instruction booklet here.