The sync pickup of this distributor is fixed at 45 BTDC on the number one cylinder. This signal will reliably alert your ECU as when the number one cylinder is preparing to fire. The distributor uses a wide, Ford-style cap to improve voltage distribution and to reduce the chances of ionization and spark scatter. A .0500" polished steel shaft is responsible for spinning the rotor and is guided by a sealed ball bearing guide and bushing. The distributor is ready to drop in your race engine from the bronze gear to the brass terminals of the cap. MSD EFI Sync Signal Billet Distributor 2340 Chevrolet V8 - Includes Cap/Race Rotor - Use w/MSD 6/7/8 Series Ignition and Crank TriggerWide Ford Style Cap Improves Voltage Distribution0.500 in. Polished Steel ShaftPit Stop USAoffers MSD Ignition EFI Sync Signal Billet Distributor 2340 at low everyday prices. Be sure to check out all of the products from MSD Ignition including MSD Ignition Parts and Accessories, MSD Distributors, MSD Chevrolet / GM Distributors, MSD Chevrolet / GM Distributors.