well theres several places you can call that can tune your suspension; revalve etc.
they'll have you send in ur suspension and they'll ask u ur weight and riding style.
some places are independent suspension, pro circuit, race tech, etc.
just give em a call and they'll probably give you a price quote (it can be very pricey)
http://www.independentraceshop.com/
http://www.procircuit.com/
http://www.racetech.com/