2003 Chevrolet Corvette Z06 (C5): Square set up fitment and performance

[gray torrent]

I'm thinking of getting a square tire and wheel setup for my c5 z06.

Current sizes:
Front
Wheel: 17x9.5 ET 54mm
Tire: 275/40R17

Back
Wheel: 18x10.5 ET 58mm
Tire: 295/35R18

Intended sizes
Front
Wheel: 18x10.5 ET 58mm
Tire: 295/35R18

Back (same size)
Wheel: 18x10.5 ET 58mm
Tire: 295/35R18

I have two main concerns about this change:

Handling?
I assume this will help the car be more nimble but steering might be heavier and straight line stability might decrease. If anyone has run a square set up on their corvettes, let me know how the driving feel changes.

Fitment?
Will this rub in the wheel well? There is also a brake cooling duct towards the front edge of the wheel and there is about an inch (2.54cm) of clearance right now. I wonder if this will rub too. Attached is a fitment comparison.

If there is anything else I should know about this fitment please tell me.

My goal with the car is to make it more nimble around corners so I can whip around red lights at 40 mph.

[abstract yacht]

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[gray torrent]

I realized i can just stick my rear wheel onto the front hub to see

[blazing delta]

Oh hey I actually know a bit about this since I have C5Z wheels on my G8

[blazing delta]

So the 18x10.5 wheel will not rub on the brake duct, and depending on the tire you choose, may poke out of the fender slightly.

285/35-18's up front and 305/35-18's out back on this car.

This car has 295/35r18 goodyears on it.

[gray torrent]

wheel well clearance is fine?