i have a '99 ZR Sno Pro and was wondering how it compares to a 2000/01 ZR 500 EFI and carb in a side by side race.

The 99 SnoPro when set-up right Will run right tight with the newer 500's. *The 2000, 2001 SnoPro's actually have a slight advantage over the 500's.. *It really comes down to who is taking care of the sled. *Clutching, Belt, Studs, etc. *I have owned all the Snopros since 1999. * The clutching on the Snopros is usually spot on, and will give it the edge on holeshot.