The blaster 3 coil features an extra tall tower design to improve the coil wire attachment and spark isolation. Supplied with a 90 degree terminal and boot. Provides improved output coil for electronic ignitions, and MSD ignitions (ballast resistor required for points). 100:1 turns ratio and lower primary resistance produce high voltage output. MSD red metal canister is filled with a premium grade oil for cooling. Product Features:Extra tall secondary tower for secure coil wire connectionImproved output coil for electronic ignitions and MSD IgnitionsBallast Resistor Required If Used w/Stock Points IgnitionRed Metal Canister Is Filled w/Premium Grade Oil For CoolingSupplied w/90 Deg. Spark Plug Style Terminal And BootCARB E.O. Approved