While it’s the perfect coil to go with the PerTronix Ignitor breaker less ignition, our 40,000 Volt Flame-Thrower canister coil can benefit virtually any distributor type inductive system. Its higher Voltage allows larger spark plug gaps for added power, smoother response and better fuel economy. These coils are internally resisted so installation and wiring is drastically simplified. Our oil filled coils offer great heat control for street driven vehicles, while our epoxy filled coils provide superior winding support for high vibration environments in off-road vehicles and boats Coil Style: Canister Primary Resistance: 1.500 Ohms Secondary Resistance: 10.6 Kilo Ohms Maximum Voltage: 40000 Volt Internal Construction: Oil-Filled Diameter (IN): 2.15 Inch Height (IN): 6 Inch Color: Black Features 40,000 Volt Canister Coils1.5 Ohm Primary ResistanceHigher Voltage Allows Larger Spark Plug Gaps For Added Power, Smoother Response And Better Fuel EconomyOil Filled Coils Offer Great Heat Control For Street Driven VehiclesFor Use With Inductive Ignition SystemsCoils Are Internally Resisted So Installation And Wiring Is Drastically Simplified