Thanks for the replies.
So, this is probably taking some fluid away from the converter.
And on a race car, which runs at a higher line pressure, there is still enough fluid to feed the converter?
As to why B&M refers to this as a "Track Only Mod."
But, on a street car this large of an opening could starve the converter during daily driving use?
The original hole seems slightly smaller then 1/16".
.140 is quite a bit larger then .062.
I guess I could drill and tap the hole for a set screw that has been drilled closer to stock size or even .094.
Just thinking out loud, and thanks again for the replies.