Chevrolet Small Block Adv. Duration: 292/296 Duration @ .050: 264/268 Lift: .555/.550 Lobe Separation: 106 LC Included Lifters: 91118 Direct Lube Mech. Flat Tappet 3400-7200. Small Base Circle, Oval track, dirt or asphalt, 3/8 to 1/2 mile with fast corners. |