Cool build! Ryan at Shady Dell built a SB single turbo engine for his own '70 Coronet. He had a thread over on moparts showing pictures of it a while ago.
Yes I seen it on theturboforums.com, the original engine has passed away he couldn't control the boost "the wastegate failed or something" and it detonated breaking some ring lans. He has put a bigger turbo on it and it is running again as of recently.