COMP Cams Ultimate Adjustable Billet Timing Set with high strength billet gears and seamless roller timing chain delivers years of reliable service. The set features 2-degree incremental adjustability with 6-degree maximum advance/retard. The unique design yields precise camshaft timing and durability. It includes a Torrington roller thrust bearing for reduced friction and custom adjusting tool. The Ultimate Adjustable Billet Timing Set is perfect for all street performance and race applications.