Ford FE 352-428
Cam Series: Retro-Fit
Advertised Duration: 272/278
Duration @ .050": 219/225
Valve Lift w/1.75 Rockers: .525/.525
Lobe Separation Angle: 110
Intake Centerline: 106
Valve Lash: Hyd./Hyd.
1800-5400. Fair idle, high performance street, good mid range torque.

Ford FE 352-428
Cam Series: Retro-Fit
Advertised Duration: 280/286
Duration @ .050": 227/233
Valve Lift w/1.75 Rockers: .525/.525
Lobe Separation Angle: 110
Intake Centerline: 106
Valve Lash: Hyd./Hyd.
2000-5600. Mild lopey idle, street/strip, strong mid-range horsepower.

Ford FE 352-428
Cam Series: Retro-Fit
Advertised Duration: 299/299
Duration @ .050": 245/245
Valve Lift w/1.75 Rockers: .586/.586
Lobe Separation Angle: 110
Intake Centerline: 106
Valve Lash: Hyd./Hyd.
2800-6000. Lopey idle, street/strip, good mid range horsepower, best with 3000+ stall.

Ford FE 352-428
Cam Series: Retro-Fit
Advertised Duration: 300/304
Duration @ .050": 247/251
Valve Lift w/1.75 Rockers: .630/.630
Lobe Separation Angle: 110
Intake Centerline: 106
Valve Lash: Hyd./Hyd.
3000-6400. Rough idle, hot street/bracket, good torque & upper mid mid range, 11.5:1+, 3400+ stall.