I wish to move it up a notch and do modifications to achieve at least 425 RWHP. I do not intend to race but just want a bit more excitement. It appears the two paths to examine are #1 Supercharging or #2 Heads/Cam/Headers. Both options are similar in cost. Supercharging is easiest would probably exceed my goal, but I am concerned if the motor will handle the additional strain with no problems. Heads/Cam combo will put me right where I desire, and I feel will put less stain on the rest of the motors. I invite your comments on these options.