I realize this post is very old, but I am inclined to respond if anyone is still interested in the topic.
It is my understanding in the late 70's, at the end of the production year, Dodge produced a handful of 426 hemis with a cross ram using a TA hood.
It's been about thirty five years or so since I heard about this and actually saw the photo of such a car.
I know I still have a copy of the photo somewhere.
The air cleaner assembly had a base plate that took a foam seal which married with the underside of the TA Hood.
I spent many years looking for additional documentation on such a car, but never got anywhere further then the photo.
I would very much like to know if anyone has ever heard of such a car in order to verify the validity of this phot.
Stan