From what I read on another forum, yes, it was a bona fide Hemi 'Cuda--1970 vintage--convertible that Centolanza Bros. updated to a 1971. Fast forward a few decades: car was found, restored as 1971 Hemi 'Cuda, then owner found out it really was a 1970 Hemi ragtop, then had it restored back to its correct year.
Pete