Ford Small Block 221-302 1963-1995 (Except 302 H.O.) Advertised Duration: 295/299 Duration @ .050": 260/264 Valve Lift w/1.60 Rockers: .592/.592 Lobe Separation Angle: 106 Intake Centerline: 102 Valve Lash: .022/.022 3600-7600. Bracket race or 3/8 to 1/2 mile oval track with fast corners, 331-363. |