Jim - this breather appears to have some sort of sintered metal filter in it - sort of like those factory Holley fuel inlet filters I think. Also, the vent passage on this is under the hex head so I don't think hooking a hose up to it would work very well. I'll keep an eye on it but I hope that filter media will hold down the possibility of
oil spray making it's way out. If it gives me any trouble I might have to replace it with a pipe thread nipple that I can slip a piece of rubber hose on to, and extend that up by the engine and put the vent in the end of it.