First time driving John's C6Z after he got it running with a crate LS3. The car is around 3100lbs and makes around 450whp, it had a top speed of 143mph at the end of the straght, and it was on some pirelli scrubs. It had a lot of understeer for some reason, so with that dialed out, and a colder morning session, should easily be sub 30. Need me a V8 back in my life!