Ok, now I'm lost. There is one big port on the rear of a Holley or the front of a Carter, so how can you hook the PCV up to the "large carb port" and your breather tube "to carb base"?
Did you go to the ME Wagner web site and read all the tech stuff there?
What I would do it hook the PCV valve up to the large port on the carb and put a breather on the other valve cover and skip any other hoses.
Damn, I'm lost.