ride height problem

For 69
the track widths; front 57.4, rear55.5
the heights
Barracuda; 1.375 +/- .125 Standard 318 tire size was 7.00-13
Valiant ; 2.125 +/- .125 Standard 318 tire size was 6.95-14
Its the same front end. So, putting 14s on the barracuda would bring its height to 1.875. Averaging then nets 2 inches.
The height is the difference between ; the lowest point of one adjusting blade to the floor, and the lowest point of the steering knuckle arm to the floor.
Which can be like trying to hit a moving target, because every time you change the height by cranking the T-bar adjuster, the blade moves, then when you crank the other side up, both sides again move. Yeah its tricky.
In practice just get it close, then level it. Its not critical.The car needs to be rolled after every T-bar adjustment to relax the suspension.And the ride height needs to be set before the alignment, and not changed afterwards. Tweaking the ride height, changes the toe-in and that leads to tire wear, and to wandering and possibly to high speed instability. Caster and camber change too, but to a much lessor extent. Only the measurement-conscious would care.(I said tweaking).
All measurements here quoted are for 69 and for Plymouths. However, its the exact same front end.