My cossie is now back looking like a cossie under the bonnet but we have a query about where the breather pipes go. The top 2 are ok but its the 2 from the bottom we arent sure about. The one on n/s just vents below the car.

Question is where does the o/s one go to? Is it supposed to return to the block?

This is what my mate said "The hose connection looks like ¼” NPT, but the block seems to be ½” NPT"

Now i dont even know what NPT is lol!

So should the breather go back to the block? Does a lot come through there or would we be ok to rig up a small catch tank???