Ok i am putting my motor back together and i cant figure out what coolant lines go where. Basically there are 4 openings and only 2 places for them to go.

I have one pre-thermo nipple, one post-thermo nipple, and one nipple on the intake manifold. There is also a nipple on the waterpipe but i blocked it off since i removed my fitv and thats what it goes to.

So all i have left is my IACV which take coolant but what 2 lines go to it? is it the intake manifold and post-themo nipple or is it the pre and post thermo nipples and then i block off the intake nipple? Im confused, i know there are some extra nipple cause i removed my fitv but now i dunno which nipples go to the IACV.

please help!