One of the interesting things in the b-bodies thread I mentioned (post#4) is the guy trying to use three corvette carbs (holley reman, sourced on ebay) was that he found (apparently in stock, where I don't know) a "replacement bowl kit", part#134-101S side hung 2300 bowl.
I have no idea if these are available, this is from a April 2020 post.
EDIT! I looked em up at summit, ordinary 4160 bowls. Oh well........
