ZEDD, I installed the following setup in my buddies' 2000 Summit 700, and it definitely made it quick for 700 feet. He has easily beaten an Mxz 800 (stock) and an slp piped and clutched '98 Xc 700 and stock 2001 Xc 700. His lack of top end pull would be attributed to the 144" by 2" track. The setup is a Prim. pink-pink (230-350) part# 415074800 as there are two pink-pink springs, 286 ramps, 19.5g or 20.5g pins, set at #1 or #2 clicker. Sec. beige spring set at 18-20lbs with a 50-47 cam or you could try a 54-48 cam set at about 20lbs. I geared up the Summit to 24-44, but your stock gearing in the Mxz 700 would be good. Something to try that worked on my buds 700.
Hope this helps!
Hope this helps!