Route crankcase breather after air filter?

the oil breather has a filter on it so you can run the other side into the carb hat inside the filter or outside, seen it both ways. The outside isn't really outside as its in the air cleaner, just outside the footprint of the filter, and it had a little fiber filter for some reason. Many air cleaner bases have a knockout for a 1" inlet for some reason. My pulse injection comes straight from the inside of the element for filtered air to the exhaust manifold via a one way check valve. Loud as hell with the air cleaner top off.