I have a 99 Zl 500 carb I bought new and have over 10,000 miles on it. It's been an awesome sled with the exception of 2 bad stators. The first one burned up around 4k miles, I replaced it with a Cat stator and it burned up at 10k miles. Put in a re-built this time.
I've had to keep on the routine maintenance like clutch replacements and piston rings and such, but over all it has been a great sled and I'd buy another in a heartbeat. The only negative is the mpg, it sucks.