03 GT vs. 96 Z28 Close race?

Your 2.73's will hurt you but it can be a drivers race.

Just to show the power your car can have, my buddy's 97 LT1 TA with just a catback and a Cold air kit in his 3.23's Auto runs 13.6's consistent with street tires.

Good luck, but I think your 2.73's are going to cause you the race.
 
Most people will only run a low to mid 14 second time slip
stock or with a few bolton's.Of course with lots of practice and
trial and error they will see 13's depending on track conditions,
weather, etc. They really aren't anything to write home about
but,they have potential.I belive that with practice the 03 GT will
win in the long run everything equal.From what I see the 03 and 04 GT's always seem to dyno higher than the 99-02's.Good luck with the race.