1966 Belvedere Wagon - 440 6 Pak

Doc fiberglass,
i have no et on the car !i just(3 months ago)put in a 3:23
posi rear.
It has a 10" convertor(about a 3500 flash.)
the car runs a lot better with a higher gear in it.
(the rpm is a lot lower then it was when i got it.)turned
out that it had a 4:30 gear in it.
Anyway,the only reason i'm selling is my age and health
both suck.
Thanks,for the response.
Sam8)