COMP Cams Camshafts 54-697-11 Hustler Stage 2 Hydraulic Roller Cam for CT525 Crate Engine Hustler CT525 Grind with .004" more lift and a small enough duration increase to make it very difficult to catch without removing the camshaft COMP Cams Hydraulic Roller NSR Drift Camshaft CT525 Crate - Stage 2