Ford 351C/M/400 1970-1983 Adv. Duration: 270/290 Duration @ .050": 206/221 Valve Lift: .481/.490 Lobe Separation: 115 LC Included Lifters:91211 Hyd. Flat Tappet 1000-4800. American Muscle. Near duplicate of the Ford 300HP/351C cam (FMC #D2ZZ-6250-B).