[Billy-O]

The inner plate of the breather assembly has a small hole that should be on the bottom so excess oil can drain back into block.

There are two gaskets, I'm sure you followed the assembly sequence.

I think somebody once mention the stud used to secure the breather has more threads on one end. As if you have it backwards, the nut will bottom out....I just went out to check mine (extra block) and both ends have the same amount of threads.