So, bit of a problem here I’m finding. I’ve been assembling a DOHC ZC with a D16Z6 intake manifold using the Cheddas adapter. I have got most of the coolant hoses plugged into the correct spots for the engine. However, there are two small nipples for coolant hoses on the manifold that I can’t seem to figure out what to do with. I believe one should run from the throttle body to the intake manifold.

I also am running a S2000 throttle body with no FITV. I just plan on running the coolant straight from the IACV to the intake manifold as well. I circled the nipples in question. Any help would be appreciated, these diagrams are rough to figure out.