Pertronix D7500700 Module Ignitor III for Flame-Thrower Billet Distributor Replacement Ignitor III module for all Flame-Thrower billet distributors Multiple sparks thru the entire RPM range Integrated digital REV limiter with LED feedback for precise RPM setting Memory safe function stores settings eliminating unintended changes to Rev limit Adaptive dwell maintains peak energy throughout the entire RPM range, reducing misfires while improving engine performance