Missing coolant

I installed my gt40p heads, and upper intake manifold. I know there is going to be air in the heads and manifold, and was just bargaining with myself, saying its got to be going in there. So this morning I pulled I oil pan plug, just oil came out. I bought another radiator hose, and tightened up the clamps,I also bought a new radiator cap.

Just curious as to how much coolant goes it to heads and lower intake manifold?
 
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