I have a 312 in a 57 T-bird with an adapter plate for an AO transmission. As a result the draft tube doesn't fit and clear everthing as before which is fine as I intended to install a PCV valve in place of the tube. I bought a rubber gromet and valve to fit the hole in the valley pan but when installed it seems that the threaded tube in the middle of the hole will restrict the bottom of the PCV valve. I can cut the draft tube and use that to fabricate something but was wondering how everyone does it in all the pictures I see. Thanks