dig the tri-5s! My uncle had a 55 back in the 70s when I was a little kid... if you saw the ride height maybe your uncle and mine are of the same era
I think the ride height is fine... were it me the only change would be to rake it by dropping the front more. I am a big fan of rake on anything hot rod tho'...
Are the fronts 15" wheels? They look smaller than the rear, but may be a tire/fenderwell optical illusion. If they are smaller, I think same size 17s on the front would make a great match, especially with some rake.