This induction system gives a large increase in hp; removes excess drag from the bottom end; stuffs the cranklcase to the maxuim & allowes the connecting rod to be guided in the upper end. The total clearance between the ID of the bell valve & the OD of the back end it rotates around is .0001. Notice there is no rubbing between the valve and the back end in any of the photo's. These valves have been used for hundereds of hours of engine testing. The only part to be replaced was the ball bearing which has been replaced with a ceramic hybrid.
