I'm not doing flares but if the turbo needs hood room the turbo will get hood room. I'm looking for a little more like 650-700rwhp. It'll have a 9" ford rear axle to handle the power and the tires will sit inboard. I really just don't like that flared look unless they're very small.
The SARD supra made 850hp with a 3sgte so it's do-able. There was several others in that class too such as TRD.
The car will be caged but more for torque than crash protection.