cold air intake

I just got a ram air box from, www.ramairbox.com for my 73 340 Duster. The problem I am having right now though is finding a place to route the ducting intake too. I would like it behind the grill like on the cuda posted on this thread, but their is just no room on the dusters. Has anyone here done a ram air install on their duster? Any ideas, or pictures would be awesome. I was thinking maybe under the front bumper or something.