This is the SOHC bad boy! 3.73+ gears recommended, 2400 + stall for Autos. Tons of top end power, incredible torque. If you are going drag racing this is your cam! 242/246 @ .050 .550 lift. Valve springs required. Must use notched pistons. This part is legal for use on Racing Vehicles only and does not have a CARB E.O