Breathers, PCV question

dano said

You should run a PCV from the valve cover to the carb and a hose from the other valve cover to a nipple on the air cleaner.

A good read here:

http://www.engineprofessional.com/articles/EPQ315_34-44.pdf

Click to expand...

Nice article and since it was written 5 years ago I wonder how so many years later the PCV in question held up and if the results upheld the conclusion they promoted.