does anyone know of a way to keep oil out of the mass air meter or intake system on a 2013 cvo breakout?

 

Either do some homestyle engineering and adapt what you have to vent it outside of the motor intake yourself or purchase a bolt-on A/C kit from DK Customs or the like and change it over.

 

and/or keep the oil level at the 2/3's mark instead of the top.

dealership filled mine over the top mark at the service and the intake was covered in oil within 20 miles, what a mess