i am looking to upgrade my 300ex with a cam kit, exhaust(white bros), and a bigger carborator. what are the best brands that make a cam for a stock(not bored out) 300ex engine and please include their price. thanks.

 

I would put a Hotcam in it. you can find them online at www.rockymoutainatvmc.com. i think they are $140-$170.

 

If you don't mind spending a little more money you can go to Crower "CrowerPower.com" in Lake Elsinore CA. The Crower will give you a lot more duration; but without the ability to add the fuel and air it's asking for it would be a waste. Your on the right track with the K&N but your going to have to at a minimum re-jet your carb. May want to do some porting while your in there..... And if your going that deap already, can you add some CC's with a mild change in compression.....? Good Luck