'73 and up brake booster on a '66 factory V8 car

On my 1965 Dart, I used a ~1999 Intrepid booster on 1974 Dart stand-off brackets. I had to angle it slightly upward with nuts on the mounting bolts to clear the left valve cover on my 273 engine (avatar), but I do have perhaps taller aftermarket valve covers. You could likely do the same with a 1973 Dart booster. I think the correct 1965 booster was a smaller diameter and longer one with dual diaphragms. I later got one but haven't fooled with it.