Valve Covers....PCV Question

Here you go: http://www.forabodiesonly.com/mopar/showthread.php?t=29834&highlight=under+hood

There is a bunch of under hood pictures and you can see what different ways of hooking up PVC and different options you might want to go. Notice the ones with the tubes on both valve covers running toward the back of the car... those are drag race only type.... the tubes are connected to the headers which creates a suction.

This one is hooked to the bottom of the air cleaner.