What you have got there will work ok.
I assume your engine has not got the small bore breather inlet at the rear of the valley.
Ideally an engine breather system should have a active flow throught the crankcase with a controlled inlet on one side and suction on the other side into the inlet manifold. Yours just sucks from both sides. My set up is like yours and has been trouble free for umteen years and is effectively no different to those guys who just feed the breathers into a catch tank.
If you have the small bore breather inlet at the rear of the valley then you could put the small filter onto that and block the spare hole in the black tank.
Have fun
Regards Denis
Old Janspeed set up
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