The MSD 6TN and MSD 6ALN were designed with NASCAR racing in mind. In fact, both of the capacitive discharge high power ignitions are NASCAR approved! The "N" Series Ignitions feature the mandatory 6-Pin Weathertight connector to meet NASCAR's ignition wiring rule, 20-6. 1. This special connector provides a tight, positive locking connection with individual seals to keep dirt and moisture away from each connection. All of the MSD's primary wiring meets MIL-86A specifications with special tinned conductors for superior crimps. Inside the strong cast aluminum housing, the multiple sparking CD circuits are encased in a clear two part silicone elastomer for the ultimate in vibration protection. a special clear base plate is also installed for easy tech inspection. The 6TN is equipped with a special 4-Pin connector that plugs directly into an MSD Soft Touch Rev Control, PN 8738, while the 6ALN has a built-in Rev Control. Features: Multiple spark, capacitive discharge ignition controlDesigned for circle track racing with NASCAR mandated connectors and clear epoxy potting compound for vibration protection6-pin Weathertight connector, mandatory for NASCAR useCircuit board is encased in a clear two part silicone elastomerClear plastic base plate for easy tech inspectionBuilt-in Soft Touch Rev Control is adjustable with RPM ModulesMultiple sparks for 20 degrees of crankshaft rotationWorks on 12 - 18 volt electrical systemAccepts breaker points, amplifier and magnetic pickup trigger inputs470 primary voltage output to coil110 millijoules per spark up to 15, 000 RPMProgrammable for 4, 6, or 8-cylinders by cutting red/blue wire loopsSupplied with rubber shock mountsSupplied with 3, 000, 6, 000, 7, 000 & 8, 000 RPM ModulesNo CARB Exemption Order NumberPit Stop USA offers MSD 6ALN Ignition Control 6430 at low everyday prices. Be sure to check out all of our products from MSD including MSD Ignition Boxes and Controls.