BB Mopar head design ??

The first real issue here is that your questioning the engineers.
They were given a task to complete under restrictions and guide lines. A high performance head was not the guide line.

What ever YOU can come up with or what ever design you "THINK!" is a good one now will only be a laughing stock of a joke 35 years from now. Don't even consider what will it will be thought of 47 years from now.