I'm new to ZVH's...

When replacing the std breather setup on a ZVH engine (FRST in this case) how's best to route the return from a Bailey tank? The only obvious ways I can see is to either T into the Rocker-to-block breather hose at the bottom, or the Turbo oil return which is at the front of the block...

...at the moment i've connected it to a bottle which seems ok but the idles a little lumpier than it was before.