MSD 601513 Direct System [DIS] Kit, Chevy Small/Big Block, Red @ Speed Tech

Nitrous-fed engines benefit from the included Step Retard feature. Drag racers will appreciate the 2-Step Rev Limiter and Launch Retard features. The clearly labeled wiring harness, along with a full line of supporting components and accessories, take the difficulty and guesswork out of converting traditional distributor-type engines to a modern and efficient Coil-Per-Plug ignition system.