We are not discussing the screw in plugs. We are discussing the plug that goes between, the line to the oil filter and from the oil filter that is in the vertical passage underneath the oil sending unit, it is a press in plug.
As for the Guitar Jones Oil passage modifications I use part of them because I rev the crap out of my Motors. So yes some of that is a modification for Street Motors.
Using the recording part of this sometimes throws words in that weren't necessarily in my paragraphs please bear with. I try to edit the imperfections from this.