""My suggestion is to check with a vacuum gauge under your light throttle conditions to see how close to the PVC opening point you are. If vacuum is hitting that point, a bigger PCVR may help, but then it will also richen the WOT which will require another round of other optimizations.""

My vacuum at cruise is in the upper teens, so my thought of the larger PVCR will not work. The cruise to light throttle is minimal and it is time to start worrying about how to slow this car down a little quicker now. Front brake upgrade is next.