I think I did a good job on my 66. Very subtle. Rear is lowered. 1.5 inch. 245 14 rubber under there. Front with 215 14. Stock kH brakes. Looking for a front anti sway bar that will fit a 66. Handles and drives very nice. Lower control arm stiffiners.stiffer rear springs. Big block torsion bars....of course the limit is what rubber can be found in 14 inch...