I think the Lone Ranger pulled a fast one on ya good buddy, that combination would have your six popper reving at well over four grand at 82mph.
I just put a 4.10 in my 1950, 3604 and now she feels real happy at 55mph. Runs about 2600-2700 depending on which tires I've got on her, i.e., 28.5" or 30".
Denny Graham
Sandwich, IL