Ford Small Block 221-302 1963-1995, 351W 1969-96 
Advertised Duration: 301/309
Duration @ .050": 269/277
Valve Lift w/1.60 Rockers: .693/.661
Lobe Separation Angle: 106
Intake Centerline: 102
Valve Lash: .022/.022
4400-8400. Rough idle, competition, great upper rpm torque, 12.0:1+ CR, 4500+ stall.

Ford Small Block 221-302 1963-1995, 351W 1969-96
Advertised Duration: 301/309
Duration @ .050": 269/277
Valve Lift w/1.60 Rockers: .693/.661
Lobe Separation Angle: 108
Intake Centerline: 104
Valve Lash: .022/.022
4400-8600. Competition, good upper rpm torque & horsepower, 12.0:1+ CR & race converter.

Ford Small Block 221-302 1963-1995, 351W 1969-96 
Advertised Duration: 301/309
Duration @ .050": 269/277
Valve Lift w/1.60 Rockers: .720/.693
Lobe Separation Angle: 106
Intake Centerline: 102
Valve Lash: .022/.022
4400-8400. Competition, good upper mid to top end torque, 12.0:1+ CR & race converter.

Ford Small Block 221-302 1963-1995, 351W 1969-96 
Advertised Duration: 301/309
Duration @ .050": 269/277
Valve Lift w/1.60 Rockers: .720/.693
Lobe Separation Angle: 108
Intake Centerline: 104
Valve Lash: .022/.022
4400-8600. Super pro/bracket, good upper rpm torque & horsepower, 12.0:1+ CR & race converter.

Ford Small Block 221-302 1963-1995, 351W 1969-96
Advertised Duration: 301/309
Duration @ .050": 269/277
Valve Lift w/1.60 Rockers: .720/.693
Lobe Separation Angle: 110
Intake Centerline: 106
Valve Lash: .022/.022
4500-8800. Good mid-range power with top end pull, 12.0:1+ CR race converter.

Ford Small Block 221-302 1963-1995, 351W 1969-96
Advertised Duration: 307/315
Duration @ .050": 275/283
Valve Lift w/1.60 Rockers: .688/.672
Lobe Separation Angle: 108
Intake Centerline: 104
Valve Lash: .022/.022
4800-8600. Strong upper horsepower, 11.5:1+ good heads.

Ford Small Block 221-302 1963-1995, 351W 1969-96 
Advertised Duration: 307/315
Duration @ .050": 275/283
Valve Lift w/1.60 Rockers: .688/.672
Lobe Separation Angle: 110
Intake Centerline: 106
Valve Lash: .022/.022
4800-8600. Competition profile, good top end power, needs god parts.

Ford Small Block Clevor 351W with Cleveland Heads
Advertised Duration: 289/299
Duration @ .050": 257/267
Valve Lift w/1.73 Rockers: .692/.692
Lobe Separation Angle: 108 LC
3000-7200. Rough idle, good mid-range to upper RPM, 10.0:1+ CR, 3500+ stall.

Ford Small Block Clevor 351W with Cleveland Heads
Advertised Duration: 295/303
Duration @ .050": 263/271
Valve Lift w/1.73 Rockers: .727/.721
Lobe Separation Angle: 110
3600-7400. Rough idle, good upper RPM, 11.5:1+ CR, 4000+ stall.

Ford Small Block Clevor 351W with Cleveland Heads
Advertised Duration: 299/307
Duration @ .050": 267/275
Valve Lift w/1.73 Rockers: .727/.715
Lobe Separation Angle: 108 LC
3800-7600. Rough idle, good mid-range to upper RPM, 11.0:1+ CR, 4500+ stall.

Ford Small Block Clevor 351W with Cleveland Heads
Advertised Duration: 307/315
Duration @ .050": 275/283
Valve Lift w/1.73 Rockers: .744/.727
Lobe Separation Angle: 110 LC
4200-8000. Rough idle, strong upper mid-range to top end power, 12.5:1+ CR, good exhaust.

Ford Small Block Clevor 351W with Cleveland Heads
Advertised Duration: 307/315
Duration @ .050": 275/283
Valve Lift w/1.73 Rockers: .744/.727
Lobe Separation Angle: 112 LC
4200-8000. Rough idle, best in large cubic inch, great to end, 12.0:1+ CR, good exhaust.