Who do you think would win if it was a head to head race?

Long story short my mother got a 06 corvette 6speed for a early wedding present... stepdad is considering putting a supercharger on it after having a long discussion with him about it. I was telling him that if he put a Maggy S/c it wont void out the warranty and would be pretty close race for the fraction of the price a zo6 would be.. and possibly might beat a zo6..... so i'm pretty close to luring them in to buy one... I was just curious who do you think would win in a race?