Senses current level in the coil and adjusts dwell to maintain peak energy throughout the entire rpm range. Develops an average three times more available energy between 3,000 and 5,000 rpm and nearly doubles available plug voltage. High rpm performance is improved with the new Flame-Thrower II™ Coil. Peak current level is reached just prior to spark, so ignition energy is sustained with less heat build up, increasing coil and module life. Adjusts spark timing over the entire rpm range to compensate for the inherent electronic delay, resulting in more stable timing. Senses incorrectly wired or key left on and shuts down the system, protecting the coil and other components from damage.