I think the nice term is "home grown"!! Wow, that is weird. The tin 'block' with the Mopar sticker looks to be sitting over the normal carb intake opening, and those are obviously fuel lines plumbed to the two 'canisters' on the front, but if those are carbs I've never seen a street car with them before. Perhaps a marine carb setup? I can't see how that would constitute a six pack unless those canisters each contain a 3 bbl carb.....
I look forward to someone identifying this for sure, defintiely one-of-one as far as I've seen.
Later, Jim