I've seen that as well and wondered if it would work. At least the TB isn't straight up like the truck 5.7 Eagle intake is, but I wonder if it would clear the hood with an intake tube on it.
Never seen it done, but don't mean it can't be.
Edit - I should add that I have heard that the truck 6.4 intake makes more HP than the truck 5.7 intake does. So it should be a worthy intake to run.