Oil Galley plugs at Camshaft

Good evening everyone.

We have started putting together my 408 stroker and the block has nice plugs threaded into the two galley plug holes that go behind the timing chain tensioner. Those holes are covered on the timing chain tensioner. So I am wondering should we take them out of the block or open them up on the timing chain tensioner?

On the 318 that we took out of the Duster those holes are not even machined with threads and so the plate just covered them.

Thanks a lot