Chrysler /6 performance book dutra

Well kinda the point I was trying to make is, who in the world would grab the project only to make "small" or "moderate" improvements? All that $$$$ for R&D and everything else for something that flows a little over 200 CFM? Now, 250 plus, I might could endorse.
Was the Aussie "slant hemi" based on the US 225 block with their Aussie hemi head? Just wondering. I know it very ran well!