Dynatek Tc88 Digital Performance Ignition System For Harley Twin Cam Carb Models Dynateks Tc88 is a single fire, fully PRE-programmed performance ignition with 16 programmable advance curves and 8 Rev limiter settings. Features full digital accuracy and J1850 compatibility with all stock devices. Coil compatibility from stock to performance (less than 1-ohm resistance). Coil current is constantly monitored to provide constant full spark energy. Utilizes all stock sensors, stock OE connectors and the stock OE mounting. Reverse battery and spike protection are also built-in. Features: Single-fire, programmed performance ignition 16 programmable advance curves in three groups 8 rev limiter settings in 250 rpm steps from 5750-7250 rpm All functions offer full digital accuracy Compatible with stock and performance coils Less than 1 ohm resistance Coil current constantly monitored to provide constant full spark energy Uses all stock sensors and connectors Made in USA