I'm getting back to my 383 A Body project in which I installed B Body HP manifolds in my '75 Scamp and had it running and driving (but low compression). Schumacher /6 --> BB kit. I abandoned the column shift dream, TOO tight. Now, B&M Quicksilver, and converted my column to remove column shift collars.
I am in the process of rebuilding the 383 - The tti's will be a nice improvement!