Auto Cam gear 1.High quality Cam Gear 2.Made out of CNC machined 6061-T6 billet aluminum •Cam Gear are designed to increase horsepower and torque without any cams changes and ideal for heavily modified engines • Adjustable cam gears are With twelve degrees (both advance and retard) of laser engraving adjustments, you can be assured of proper and precise tuning. • Made from the highest quality AL7075-T6 billet aluminum,the hard-anodized finish prevents premature wear. They allow fine adjustments to cam timing with simple hand tools so you can maximize engine performance anywhere whether you’re in the pits or in your own garage.