Allstar Performance ALL81225 Distributor Rotor
The mechanical advance distributor works with an aftermarket control box and an external coil. Fits small and big block Chevy (except 348 and 409). Housing is CNC-machined 6061-T6 aluminum with an upper support bearing to provide accurate timing at higher RPM. Distributor includes advance springs, advance stop bushings, manifold gasket, O-rings, spark plug wire retainer cap with screws and instructions.