Aeroflow Performance digital ignition controller isa microprocessor controlled capacitive spark discharge which increases the voltage across the spark plug gap. This increase in high powered sparks ensure a complete combustion of the fuel mixtureproviding a clean smooth idle and improved performance on any street car. This ignition control box can be installed on any 4,6 or 8 cylinder engines equipped with a 12 Volt electrical system and distributor. The wiring harness is routed out one end of the control box through a sealed and locking connector which is also available separately. This allows easy installation and keeps the wiring looking neat and tidy. The rev-limiter is located right on top of the housing for easy access to the two rotary dials to set the limit in 100 rpm increments.