I went with the catch can. Works great.

 

Def need to vent. Issue isn't A.N. it is a Harely and EPA issue. You need seen it puking oil this the stock intake even though it was.

I ordered the vent bolts should be here today.

 

I have one that has aready been vented available for sale. All proceeds go to the MChad for two wheeled children fund.

pm me.

 

I have an A/N Big Sucker on my '13 Road Glide Ultra and haven't experienced any oil puking as of yet. IMHO the A/N is mfg. to comply with the EPA which is to reroute oil vapors and internal gases back into the engine to be burned. As mentioned I haven't had any problems but I've been looking at the products from DK Custom to install the external breather sys., just to prevent any more carbon build up in the combustion chamber. Check out DK Customs.

 

Jackass ;-)