Features: Designed to add even more torque to your big bore M8, for those that keep the revs below 6000 rpm when combined with 124" and larger big bore kits. Requires the use of adjustable pushrods and heavy duty springs (sold separately). Kit includes...
Features: Improves overall performance including starting, stops high-speed misfires and increases mileage. Peak spark voltage increases by at least 20%. 30,000 V output.