sno-tek sold a bracket to mount your shocks in three different hole locations, this would allow the front to be raised in relation to the back, but if your in powder you want the front skis short and the back to be able to dig down and float the front up on the snow....
you may want to cosider a transfer stap and eliminate you rods this gives the sled the squat back you may be looking for, mountain performance sold them and a few members on here have them do a search....
i have the bovin kit brand new i never put on my sled for sale if you want it , i will try and dig it out but all it does is change the suspension arm ratio and something with the sway bar to act stiffer i believe....CP