The Ultra Wedge Port Head is the ultimate in flow and velocity. The intake valve has been increased to 46mm, resulting in 10% more flow than the standard Wedge Port. The Ultra Wedge Port uses the exclusive CB LS-1 Valve and Spring combination, which allows lift of up to .640 with .050 left before coil bind! The combustion chamber has also been redesigned for better quench. Chamber volume is now 70cc, perfect for turbo use, if desired. This exact head won the VW Engine Builder Showdown contest with the highest Horse Power of 224hp @ 6500 RPM's on pump fuel (built by Pat Downs of CB Performance).