There is a small hose going from th valve cover to th air intake box. I took the box out and managed to press a K&N clone filter on there. The ony thing I could do with the other hose was lay a small piece of paper towel over it and reinstall the clamp. All I can tell is that air is coming FROM the valve cover, and I don't have a way to link it back into the airflow. I'm guessing it's hurting my MPG???