Yo...if your not familiar with wrench'n on these ski's, then it might be profitable, to leave it stocked.
Say you score on a pipe. Great, now with that, you'll need to redue the carbs to compensate for manifold pressure loss. Inwhich, needle/seat assy will need to be altered, along with it, need arrestores, for ski to perform. Then with that sinerio, carbs are off, so need to redue again to find "sweet spot".
Sounds to me, alot a headache, "IF", not familiar on how everything works together, and end result, for couple "hp" more, let alone the money it hit you for....:cheers: