Well, one thing's for sure, if I were you, I wouldn't be so quick to be cocky

. Depending on the shape of the vette (not beaten to death) you may have a chance. Sorry, but with your auto '93 GT w/ 3.73s (mid's 14s, MAYBE low 14s) against an '89 vette in good shape-- low 14s (is it manual or auto????), he may have you by a little there.

But then again, many cars are diff, you may have a faster than average GT there, hope can prevail.
