Crower has been designing and grinding hot-street and cutting-edge full race profiles for over 65 years. Camshafts are the most critical part of your engine’s performance. Camshafts use a combination of separation angles, lift, duration and lobe accelera- tion/ramp rates to create what is called a cam profile. The profile you choose determines where your maximum horsepower and torque will occur. Choosing the right profile is critical. To get the best perfor- mance for your application, the camshaft profile must match your head and valve train components.