hey man.
sounds like you have excessive blow by. which is compression going past the rings into the crankcase. might pay to do a wet and dry compression test to see if there is a cylinder down on compression. if this is teh case then its rebuild time....
it could also be boosted air going into the rocker cover from the supercharger. but if the pcv setup is factory then i doubt its that.....but if you have modified the breather setup to go into the intake after the supercharger, then this could be the fault.