Used as a set the 4233-1INGS and 4234-1EXGS provide improved part throttle torque and low RPM torque. Valve Spring Kit #VSK4003 is required. Decompression mechanism is included.
Used as a set the 4233-1INGS and 4234-1EXGS provide improved part throttle torque and low RPM torque. Valve Spring Kit #VSK4003 is required. Decompression mechanism is included.