The points are mounted on a solid breaker plate to eliminate point wobble, bounce and flutter. All cylinders fire evenly and it will wind and fire to over 6,000 RPM. Runs great on stock or high performance engines. Can be used with stock or aftermarket ignition systems. Accuvance Distributors can be used on all 4 cylinder air cooled VW and Porsche engines except those with factory injection. Designed for use with original Bosch 009 caps, rotors, points and condensers.