ATOMIC Billet Performance Camshafts – Stage 4 Cams #306551 Duo Phased Billet Performance CamshaftsThese are the largest Camshafts that can still be run with the Factory VCT Advertised Inlet duration262° Advertised Exhaust duration257° Inlet duration at .050” lift203° Exhaust duration at .050” lift196° Lobe lift – inlet and exhaust.223” Valve lift – inlet and exhaust.455” Lobe centres112° – Computer controlled