Mallory designed, engineered, and race-tested the original point distributor over 65 years ago. New materials and technologies have enabled Mallory to improve the performance and reliability of its basic design for performance engines. Their distributors incorporate features not found in conventional, remanufactured, or replacement distributors, with the added benefit of stabilized contact point sets that increase coil output by 50 percent. They have adjustable mechanical and/or vacuum advance, heavy-duty points for an increased rpm range, self-lubricating bushings, and Mallory's Super-Duty cap and rotor with brass terminals. The result is maximum performance at any rpm.