[m5extc]

Hey there, I believe the problem you are running into is basically fitting any kind of fitting with hose out of the top of the water pump while using the "thick" billet water neck. I have seen some people grind away the housing, but that is not the right way. The correct method is to mill down the spacer in order to clearance the fitting. I can get into more detail if you want, pm me.

Andrei