What leaf springs?? Experts please chime in

As long as ride height is part of things here. Does anyone have any numbers on the original ride height on a 72 small block automatic Swinger? Since the hot rod was 30 years old when I got it, I have no idea about it's stock attitude as it was produced. The springs were well sacked when I got it, and hasn't improved any since that time. Personally I prefer a bit of a rake. I'm sure new OEs would raise it to a small amount, more would be better. In the near future it will get an improvement differential wise, either an 8 3/4 or a 9" Ford. Currently with the assistance of Gabriel and 40 lbs. of air, it has 15x8 rallies with 245 60s.