Gen VI BBC Oil Filter Question

[Marine-58]

Forgive me if I am not explaining this very well. I have never built a Gen VI BBC before and have run into a question on setting up the oil filter. The stock set up used a remote filter/cooler. Since this engine isn't going back into a stock setup, it won't have anything remote, just needs a standard screw on filter. There were some "check valves" and from what I can see, there are 5 oil holes. 2 where the filter adapter will go and 3 on the oil pan rail.

All that for the question, which ones do I need to plug versus remove the check valve. After searching the web, there doesn't appear to be much out there on this subject and this forum has always had some really smart guys responding.

Just for a separate reference, this engine will be about 650 HP, but need to get it built and over to the dyno to make sure.