polaris magnum question

hey im new to this website... got a question about my magnum. its a 2003 330 4x4 and i have recently put 26" outlaws on it with a 2inch lift. while im driving it it seems like it revvs high before it shifts while im trying to go fast. its kind of hard to explain, i have a 2001 prairie 300 4x4, when im driving that and i go from a stop, i never feel a shift or anything, but on the polaris when i go from a stop, it seems to revv high before i can go any faster, then it finally shifts. also when im in the mud or trying to pull someone out of the mud, the engine revvs when i hit the gas but the tires wont spin... this also happens if i stop on the ramp going into my truck. i hit the gas on the ramp, the engine revs but i dont move.... im not very good with working on four wheelers so does anyone have ideas of whats wrong?? any help is greatly appreciated.

by the way, my polaris did this before i put the lift and tires on it too....

Your tires are too heavy for for you to spin them.

Sounds like you need a shift kit.

what fishmstr said. Your tires aren't too heavy by any means if there only 26's. The Polaris Trans is a little different than the rest. Everyone I have ever seen seems to rev higher than the others. Your belt isn't slipping is it??

not that i know of, is there anything i can buy to clean the clutch off with?? and do you think this would help? i recently put a new belt on it too, and that was after the tires were on. where can i buy a shift kit from, what do you recommend? and would a new clutch help?