racer254,Its a 98 700 but I did install a set of ves cylinders. The 24-40 gearing was fine for trail riding but would run out of legs on the lake! I'm considering 25-39 just to see if it will pull it. with out snow in MN this sled just keeps getting to be more of a lake racer... plenty lakes! 24-39 is hardly a big change on ice as far as low end but is good for a couple mph on top. I've trail ridden this ratio and it does alright. It's more noticeable on tight trails but not bad. The ves sort of makes up for the low end loss maybe. So far I added slp twin pipes, bored carbs, shaved head .020, v-force reeds, boost bottle, wiseco pistons, remapped ignition and clutching. My old cylinders were ported but the ves set is stock for now. Runs very strong. I put a .500 inch drag track on it this year with 30 degree picks- much lighter! The new track made a huge difference getting to speed quickly. Not a huge gain on top end vs. stock track. I still trail ride this sled when conditions allow, now I just have to change tracks and let up the limiter straps.