Abstract: This invention relates to an ignition system which produces a continuous sinusoidal wave at audio frequency in order to produce a continuous spark discharge during certain times, at the spark plugs and is usable in any form of gasoline burning internal combustion engine using an ignition system. It can be fitted to any type or size of automobile or industrial engines and includes a power transistor oscillator circuit with a solid state high voltage generator switched with a switching transistor and actuated by the make and break circuit operated by the breaker points but independently of ignition timing. The spark discharge causes ionization between the spark plug points and produces ozone thereby improving the quality and speed of burning and, because of the more efficient operation, decreases noxious emissions from the exhaust system.