Hard to say what to do here. The car is "one-of-one" with the "H" code and toploader 4-speed that wasn't offered that year. AND, it is the matching motor, as sold.
Yet, the Boss 302 would be the "correct" motor "as built" by Ford. I'd love to have the car as the only 1971 Boss 302 and "the last Boss 302" ever built by Ford.
Hmmmm.....though the trend is to leave an antiquity, or "barn-find" alone. This car does have a lot of original historical "markings" that have not been destroyed. I give up. This is what I'm dealing with.
-Andy