Mike, this is what I did for turbo drains. Yeah, maybe the lazy way, but I can't tig weld so I hope this front cover does the trick. It came with the drains welded in....Shitsonsale!
https://www.summitracing.com/int/parts/hly-302-3/overview/
You'll need this and this too:
https://www.summitracing.com/int/parts/nal-12625031
https://www.summitracing.com/int/parts/nal-12669528
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