MSD 82488 Blaster Coil-on-Plug, (Set of 8) PN 82488 Ford COP @ 14 Volts Turns Ratio 80:1 Primary Resistance .51 ohms Secondary Resistance Intnal Diode Inductance 1.9 mH Secondary current (mA) 100 mA Spark duration (mS) 120 us Energy (mJ) 48 mj Maximum Voltage 32KV