Cheers in advance for your replies. Yes I did search, similar answers but with many sometimes not clear enough answers. We all know with a breather style can that both rocker cover hoses go to the can. What do I do with these two holes? Plenum chamber (http://[URL=http://s799.photobucket.com/user/calaist5/media/IMG_11301_zps1025f474.jpg.html][IMG]http://i799.photobucket.com/albums/yy279/calaist5/IMG_11301_zps1025f474.jpg[/IMG][/URL]) Turbo intake pipe (just before the turbo) Block Them? Many thanks once again for your time to view and your replies. Some original photos have not been recovered yet.