Note: If installing the Blaster SS Coil to a points distributor or a non-current limiting ignition system without an MSD Ignition, a 0.8 ohm ballast resistor is required (MSD PN 8214). The resistor should wire in series along with any factory resistors on the positive coil wire. Don't let the compact size of the Blaster SS Coil fool you, because it is packed with performance! The efficient E-core windings are designed to produce high amounts of current without sacrificing the voltage output. In fact, when used with an MSD 6 Series Ignition, the Blaster SS produces 300 milliamps with a maximum voltage output of 40,000 volts!