Is anyone running 10” wide wheels on all four corners
There is more to handling than rim width. What have you done to the car so far and how do you intended to dive it and where at what percentage of use? i.e. "dedicated track car 100% of the time, no street use."
What he ^^^^^ said.
Forget 10s on the front. and forget thinking they all 4 need to be the same.
If on the street; and by my experience;
245s are about tops on the front, on 8s; before you have to start cutting and modifying.. But be advised, the car will start to exhibit unfixable steering traits, when driving in a straight line.
I now run 235/60-14s on 7.5s and steer by power-sliding the back, lol. You'll get used to it. Getting her to drive in a straight-line with these tires was a stinking lot of work. You will probably need a buddy with an alignment rack.
On the back with the 235s on the front, you'll need 275s at the very least, to stay outta trouble. And then you'll need a minimum 300 hp to run 3.73s./ 350 to run 3.55s/ 375 to run 3.23s. If you don't have the power, buy extra wheels and tires cuz curbs don't care what your name is; when they see you coming, they will jump up and take a bite, just like ol' JoeFrazier.
For handling, yur gonna need to re-engineer the springing, the shocks, brakes, steering, the driver's seat, and that monster stock steering wheel, etc. And yur gonna have to learn to deal with all that weight between the back tires and the rear bumper. I sortof/mostly, solved that with 295/50-15s in the back; but the rear overhang on my 68 Barracuda is shorter and might weigh less........ hard to say with that monster picture window back there.......
After many many months, it finally goes where I point it........ but you know; street speeds are pretty tame. Brakes are your friends.