housing is a .68 a/r but its a T4 housing so its not entirely too small. Some say it is tho. I want to go with .96’s if i intend to keep boost high in the 15-17psi range. .68 is great for lower boost. But it comes in too hard and just spins tire on street. .96 may help that some.
I have 5/8" rubber lines off the valve covers into a catch can. Inside diameter is abit bigger than -10 AN i believe. I’m guessing its not venting enough and i may have too much crankcase pressure causing oil to seep through to the compressor side and into the intake pipes?