Is anyone running 10” wide wheels on all four corners

There are limiting factors on diameter in both too small and too large at that wide.

I'd say no on 10" with factory suspension on the front. You'd be looking for something in a 57mm offset if you've converted to BBP and probably need 18" more in diameter. 67-96 Dart's can't use some of the wider wheels with more negative offset that Duster and Barracudas can unless you cut the car, in some cases aggressively, like the 68' factory Hemi cars.