Engineered for faster rise time, longer spark duration and increased performance. Unique design with premium grade wire, special low resistance, high turns ratio windings. Produce higher spark energy with breakerless electronic ignition systems. For points applications the supplied 0.85 Ohms ballast resistor must be used in conjunction with the vehicles original ballast resistor, if so equipped. Oversized moulded case with integral cooling fins and high capacity oil filled construction provides high thermal conductivity ensuring cool operation and long life. Extra tall tan Alkyd tower and integral voltage dam eliminates "flashover" to primary terminals. Comes complete with mounting hardware and 0.85 Ohms ballast resistor. Effective to 6,500 RPM.