Flat line rise on left side indicates 7.25.
Its a small bolt 4 wheel drum car. There were no small bolt 8.25's and the 8.25 wasnt used until 73.
Not to be a dick, but that cars got a strong perfume odor. Body lines look muddy, crooked bumper, black engine bay, blue silicone all over, engine paint peeling off dirty block, etc...Check it over carefully before you offer half asking.