Originally Posted by dubcac

There are more tuning capabilities for having a different cam for each set of intake and exhaust valves...you can tune more to make power. They are more efficient in terms of gas mileage due to being able to more precisely control when the valves open and close, and how much.


Any Dual Overhead Cam Engine that is a V will have four cams. DOHC Cobra motors, 350z/G35, etc.