Plumbing coolant to center freeze plug

So here are my 2 possible locations, ive also thought about putting an elbow on the back side of the plug to help direct the coolant up and towards the center. Thoughts?

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Hey, Im sorry I know this is an old thread but i was curious... could you run the NPT lines thru the drain plug already there? Or it would be too low and too quick to take the coolant back to the pump?