i have a stock 1991 TRX250X. i picked it up from my neighbor for $100, took it home, cleaned the carb, and i have been riding it non-stop for the past few days now. i love it, its a blast, but it's too slow for me. how much would a mild cam help me? i want to re-gear it, but i dont know what the best modifications are for those quads. what about a carb upgrade? i want this thing to scream. any advise is greatly appreciated. thank you.