New to this site, but not to M bodies. I own a 1985 Plymouth Gran Fury Salon AHB that has an X head 360 w/ TTI headers, 727, and 3.55 geared 8 1/4. The engine is hurt, though, and blows smoke out of the exhaust on one side. Plus it blows out the dipstick & oil.
Working on finishing a J head 360...