Is there a combination of street tire brand/type/size that will allow you to floor the gas in 2nd gear without burnouts if you have the Roush supercharger installed? I have ordered the supercharger kit, and want to get some info from others' experience before guessing and buying wheels and tires. I currently have 255/40/19 Pilot Sports, which do pretty well without the supercharger installed yet...

Also, does the traction control do anything with the supercharger installed? It didn't seem to do much on a cold day with the OEM Pirellis. The car would spin those easily in 2nd gear.

Are you guys doing burnouts in 3rd gear if you're not careful?

 

No, and yes respectively.

No, 600hp will easily overcome any tire, so CAREFULLY ROLLLLLLING onto the throttle is a must. And yes, even a stock GT can light them up in 3rd if you're not careful.

 

The salesman at the Ford dealer where I bought my car, and had a Roush 2650 supercharger installed, cautioned me on something.
He said if I put on sticky slicks and drag race it, I should also upgrade the axle half shafts over the stock GT axle half shafts.
I did not do that as I do not do serious drag racing with it, but it makes sense and I am glad he advised me of it.