Conventional ignition systems are comprised of either a large inductor (coil) and points, or an electronic- trigger module. The coil is charged and triggered to induce a high voltage to your spark plugs. All CVI models assist in the induction of a substantially higher voltage, resulting in fuel being burned more efficiently - which translates to greater horsepower and torque.
The CVI circuitry complements the coil. The CVI is designed to ensure the coil is never depleted of energy during ignition, and is saturated between firings even at high RPM. The complementary CVI gives a spark that is both hotter and longer lasting, thereby improving horsepower, torque, and fuel efficiency since the hotter and longer spark burns fuel more completely.