Home/1996-04 Mustang Camshafts Comp Cams, Xtreme Energy, 4.6 2V, 234/238, .550/.550 (PI Heads) $989.00 Comp Cams, Xtreme Energy, 4.6 2V, 226/230, .550/.550 (PI Heads) $911.66 Comp Cams, Xtreme Energy, 4.6 2V, 230/236 .500/.500 $911.66 Comp Cams, Xtreme Energy, 4.6 2V, 224/232, .500/.500 (Non PI Heads) $958.00