Mopar Performance magnetic impulse ignition systems offer many advantages over breaker type ignition systems. They require less frequent tune-ups, increase secondary voltage, improve starting, eliminate irregular timing, change dwell with engine speed and increase plug life. Our kit includes the distributor with high performance advance curve, wiring harness, high performance electronic control unit, ballast resistor, (Hot Heads Distributor Adapter allowing the unit to be installed in Early Hemi engines, when requested) and installation instructions.