Don't cheat your engine out of any firepower available! The cap and rotor are the finest quality made today. This kit offers up to 50% higher dielectric strength and can handle all the voltage available with all Brass Terminals for maximum conductivity. The improved well design in the rotor eliminates burn-through. The material used in this kit has proven to be the ideal resin for caps and rotors to be used in DUI, Duraspark and Breaker Point systems.