Hi I've got an avy and an afh engine. I'm doing a bit of a hybrid. 

But looking today and the bolt on breather on the block is really unsightly. 

Is there a blank or an adapter to put a little filter instead. 

Any ideas

That block is an oil/air seperator, so in theory the oil is retained in the engine and the compression blow back air is vented back into the inlet system, you can fit a catch can that will catch any excess oil, but fitting a filter direct to the breather outlet on the block will clog up with oil vapours in a very short time and you'll end up pressurising the engine leading to other problems

I am going to fit a catch can. But has anyone done one and can send some pics of how they fitted the pipework to the block without that plastic casing