IMO, one valve cover should have a straight breather connected to the air cleaner and the other PCV connected to the carb base(blocking bolt). Clean air goes in one side of the engine and the PCV evacuates air/fuel/oil mixture out into the carb base to be mixed with the air/fuel mixture there to be burned cleanly.
I like the air pump for the booster. It keeps the air/fuel mixture out of the booster and relies on a constant 12V instead of engine vacuum.