Replacement Ignitor II module for Flame-Thrower billet or cast distributor. Adaptive dwell maintains peak energy throughout the entire RPM range, reducing misfires while improving engine performance. Develops on average 4 times more available energy between 3000 and 5000 RPM, and 2 times more available plug voltage. Compensates for inherent electronic delay by adjusting the spark timing throughout the entire RPM range. Synchronized peak current and spark timing reduces heat build-up.