Old style crager wheels and tires fir my duster. Opinion needed

That 57Chevy should have had 5on 4.75 bolt circle. To mount them on a 4.5 bc, means they are Unilugs. As for me, notta chance would I run Unilugs on the front of my car.
Also; nottachance would I run 195s. Even 235s have marginal braking; and steering can be tricky when pushing thru corners on city streets. 235s should be mounted on a minimum 7.5" rim.
A lotta guys run 205s on 7s

Take a front wheel off and lay a straight edge across the wheel-mounting hub; then rotate the straight-edge over the calipers. Measure the interference. You need a minimum caliper to wheel clearance of about .25 inch, to allow for wheel-bearing play in the turns.
Rallys fit every time.
Ansen-sprints/ET-IIs/etcetera, and other similar kidney-bean slots, seem to always fit.
A wheel with a flat spider never fits.

If/when you run a tire on a too narrow wheel, the tire will take on a rounded profile at normal pressures, which will pull the outer tread band on each side, up and off the road, and wear out the center band prematurely. To combat this you have to reduce the pressure.
For front wheels;
and then, if you do that, when you turn into a corner, weight will transfer over from the other side, causing the tire to roll over onto the outside sidewall, and lift the inner side off the road. Effectively then, the road sees less rubber from that tire then one would expect. Consequently it may slip, and plow you right into a curb.

I have for decades, used the 85% rule.
Convert the metric branded profile size to inches, then multiply that by 85% to get the minimum width.
Thus a 235 is;
235/25.4 x 85% equals a rim of 7.86, rounds up to 8 inches or down 7.5.
On a 7.5, a 235/60-14 will run flat to the road at ~28psi, but will roll over quite a bit in the turns.
On an 8.0, that 235/60-14 will tolerate 30psi

As the profile increases, it becomes less fussy. But you cannot run a 235/70-14 on the front, due to the 27" height factor. Well, I mean you could, in a more or less straightline............ with the right backspace ......... but, 4 to 4.25 is the max bs before the wheel gets into the UBJ. Furthermore, the taller the tire gets, the sooner you have problems with scrub-radius, which manifests as "wander" on uneven surfaces.
In my experience;
For reasonable handling and long tire life with borderline adequate braking, I us the 235/60-14s on a 7.5 to 7.75 rim with a zero offset at 28 psi, for normal driving, and pumped to 30/32 on the weekends.
Zero offset means the center of the rim/wheel is where it mounts on the hub. Ie; A 7.5 wheel; measures ~8.5, outside to outside, so the center would be at 4.25, thus for zero-offset would require a 4.25 backspace.
An 8" wheel would measure 9" from outside to outside, so zero offset would be 4.5. Yur not gonna fit a 14 x8/zero-offset wheel, on the front of your Duster on account of the wheel will hit the Upper BJ; if not in a straight line, then for sure in the turns. If you space it out to clear, well then yur into scrub-radius problems. Even a 15x8" wheel will get into the UBJ, at 15x8x 4.5bs.

On the back, using the 85% rule, a 4.5 bs is about the limit before the tire sidewalls hit the springs, in the turns, at pressures lower than ~28psi. On my car, I moved the springs inboard, and narrowed the rear end, to fit 295/50-15s, on 10" wheels with a 4.5bs. but I gotta run 24psi, so yeah it rolls over onto the sidewalls in the turns; I got used to it, and now, I like it.