MSD Ignition 8563 Pro-Billet Distributor for Pontiac V8 350-455

Special features include a fully adjustable mechanical advance assembly. For all-out racing, the advance mechanism can also easily be locked-out.\nFor stable timing, a high-output magnetic trigger pick-up is used to supply the ignition with a trigger signal. Additional stability is achieved via the 0.500" hardened distributor shaft that is supported by sealed ball bearings.\nMSD's Pro-Billet Pontiac V8 Distributor for Pontiac engines built for either street performance or hard core racing applications.