Will 305 tire on 10" wheel have excess roll?

[dreksnot]

Thinking of trying 305/35ZR20 on the front ZL1 10" wheels. The spec for the Michelin tires states it will mount on a 10-12.5" wheel. I do have strut-tire clearance as I have camber/caster plates (not sure about fender clearance with my stock height SS yet, I will have to test fit). I having tires mounted to see about that clearance; however, will the tire suffer from excess roll when corning hard (autocross, road course)?

[dreksnot]

Half update: had the 305/35's mounted on the 10" fronts. I have at least 1/4-3/8" clearance from 6/32" left tread to strut tower, and maybe 3/8-1/2" from section width to strut. They don't look like they stick out of the fender, just flush; but it's going to be close. The car is currently up in the air on my lift so I can't see where they're going to be sitting with the car in a neutral position on the ground. If that looks good, then I'll take the car out on a warmer day and load the front suspension up with hard braking or cornering in some vacant parking lot for a rub test.

[dreksnot]

Ok, so the bulge-out isn't there like I expected it to be and the 305 fit looks pretty good on the 10" wheel.

As for the tire protrusion and the fender - does this look okay? (the car is still up on my lift so the suspension is totally unloaded and drooping). I need to slap on the rear wheels/tire, drop and relook, test drive it hard.

[dreksnot]

And, a verdict is in! To no surprise - a no, go! Got fender rub on the driver's side on a speed bump. I do have some room on the strut side but I still think I'd have the rub issue cornering and braking hard. Guessing it's the 28.7" tire height and the 11.2" tread width. Well, 305 30 20 or just go back to the 295 35 20.