I have a 55 TBird.
Installed a 2” spring drop from stock specs and gas shocks on front, New leafs and gas shocks on rear @ stock height.
Radial tires.
I have the factory specs as;
Caster - ½ to 1½ degree -
And Possibly:
1 1/4 degree Right, 1 degree Left
Camber - ¼ to 1¼ degree -
And...