my first try was too long & i got auto logged out so i'm going to shorten this up
. at WOT there is not enough draw to do anything. maybe two or three inches tops, & thats with open headers forget about getting even close to that much with mufflers. if you were going to do that deal you'd need to put another reed , check valve, into the plenum & Y it into a hose going to a collector. then you'd have some good draw at idle & part throttle. again you couldn't use that with mufflers though because over time oil will accumulate in the mufflers & burn off when it got hot enough, smoke. i've never been a big fan of PCV type systems but they work better than most people give them credit for.