MSD 6ALN IGNITION CONTROL -- Features 110 millijoules per spark up to 15,000 rpm, 470 primary voltage output to coil, works on 12 to 18 volt electrical system, programmable for 4, 6, or 8 cylinders by cutting the red/blue wire loops; Supplied with rubber shock mounts and 3,000, 6,000, 7,000, and 8,000 rpm modules; Multiple spark, capacitive discharge ignition control; Designed for circle track racing with NASCAR mandated connectors and clear epoxy potting compound for vibration protection; 6-pin Weathertigth connector; Accepts breaker points, amplifier and magnetic pickup trigger inputs; No CARB Exemption Order Number.