The 2 types of battery positioning has been documented. What you're saying is that the 2 guys you know had A990-motored '65s with Park? Of course, the street cars would, I'm only referring to WO & RO A990 cars. Did the 2 guys you're referring to get their A990 cars new from Chrysler, or were they converted/built from parts, or did they get the cars used?
I always thought it odd that there'd be no Park, but Chrysler was pretty serious about eliminating weight at the time those cars were spec'd.