i have a 2000 xc-sp 440 (that years sno-cross sled) i recently swapped out the 440 engine and replaced it with an arctic cat 800 triple. trouble is the front shocks are seriously taxed by the extra weight of the larger engine. can the shocks be revalved? is their a stock shock from a big bore polaris sled (800 xcr??) that will fit my edge chassis? Or any aftermarket shocks that would fit the bill?