PCV- Good or bad idea for a performance engine?

sorry for the delayed reply - its down to time zones and no access at work,,,,,

The car is a weekender - sees mainly cruising and strip about 8 times a year.

I currently have some blow by, and Im worried this is altering my mixture when I go to the strip....

I've see a diagram of the "header dump" system...thats really too much mucking around for me...

I can pick up a ventilated puke tank cheap of Racing Junk, and wondered if the mod was worthwhile for my situation.....

My problem is Im getting a lot of differing opinions - so even if there's a 10% chance of improving my mixture - Ill do it....

Re the "one way valve"...would a PCV valve do the trick on each line?