ok im planning on making my own pcv vent with a catch can. i have a few questions about this and i research for the past week and i just have one more question. ok this kit im about to buy will plug up the big whole behind the black box and a AN fitting will going into my block as a return.
what about the other hose that is coming out of the black box. a short little hose going into my block. is that the hole my new AN fitting will go in? i though it was going into a freezer plug back into the oil section of the block. something im unsure about. thanks

 

Huh?

What black box?

 

The back of the block there is a black box to vent the fumes called the PVC valve. I want to know war happens to the small hose on top of the box.