I have a WB1860 cam that has about 5 hours use on it. It is in my 87 250X. It has .335 lift and 280 deg duration on both intake & exhaust. I am going back to the stock cam and want to sell this one. It's for racing and I don't want to race the bike. I am trying to calm it down. I want to try to sell the cam. Heavy valve springs go with it. How much should I ask?