Ford Small Block 351W 1969-1996 Advertised Duration: 283/287 Duration @ .050": 236/240 Valve Lift w/1.60 Rockers: .583/.592 Lobe Separation Angle: 108 Intake Centerline: 104 Valve Lash: Hyd./Hyd. 3000-6800. Lopey idle, good mid range power, needs 3200+ stall.
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