Check out my Dad's 1964 Plymouth Belvedere, with original interior and bench seats.
He has owned this car for about 14-15 years now. The Belvedere was a 318 Poly car when he bought it. It now supports a 383, 13.5 to
1 compression power plant, push button automatic, with SuperStock springs moved in to allow 30 x 12.5 ET Streets to roll.
My Dad and Mom had a Plymouth just like this one when they got married; except it had a 426 Hemi in it! Back in 1965 Dad saved up for in a year to buy that 426.
Dad loves the Belvedere, as I do also; (so I'm really nice to him in hope that the Plymouth will be mine someday to take photos in on my wedding day! ;-)
Your father had - and has - excellent taste in Mopars!
Glad to hear that he is enjoying the '64!
And with a 13.5 to 1 compression big block there is no doubt you'll get to the church on time!