A-Team Performance components offer a quality design. Features a quick one-wire installation. Adjustable vacuum advance canister to improve the economy. An HEI distributor for small block/big block Chevys with a 65,000 high voltage coil spark through 7,500 RPM. Comprised of Brass Terminals, multi-polymer protective caps, a CNC Machined and Polished Aluminum shaft, and a chrome-moly gear. Inside, the 4-Pin High-Performance module works together to produce a powerful spark to light the fuel mixture for an amazing performance.