I'm sure I'll be corrected if I'm wrong...but the timing gear more or less effects performance below 2500rpms, while the PCV works above 2500rpms. The advance timing should have no effect on the PCV's tuning.
i will correct you,
the timing wheel adds timing from idle all the way up, the pcv can only add above 2500, so if you add timing with the pcv it will add to what you have the wheel set at, and yes it will effect your tune slightly
2012 Cross Country(Imp blue)
de-badged,(self tinted) Klockwerx flare, passenger backrest, passenger touring floorboards, VictoryHID kit, Miller Mufflers short baffles,Lloyds air filter(from witchdr.)Lloyds timing wheel(6*), adjustable drop link, cut seat, removed cats, PCV w/at.
1978(2009) Honda cb750 chopper