Adjustable PCV

Where and what kind of 'difference' are you expecting?

Looks like a nice piece of work, but anything 'billet' is quickly high priced as well and after reading the article on the site this was confirmed.

IMO it wouldn't be too hard to add some adjustabillity in an existing pcv unit.

http://www.crankshaftcoalition.com/wiki/PCV_system