Chevrolet Small Block 262-400
Advertised Duration: 295/301
Duration @ .050": 263/269
Valve Lift w/1.50 Rockers: .630/.620
Lobe Separation Angle: 106
Intake Centerline: 102
Valve Lash: .022/.022
4000-7800. 355-383ci drag, 1/8 or 1/4 mile, heavy car, 11.0:1+ CR, 4000+ stall.