I might have finally gone completely nuts

It's more like "low budget backyard let's see how cheap we can do this"

I nearly bought a multipiece SBC Milodon? Hilborn style setup but finally decided the bores were way too big, I think they were 2 7/16? Probably 2" would be more like

I think I can build a valley and intake flanges. Not having them vertical would help hood clearance. I might even be all wet here as this might never get done LOL