i am 6' and 175 .. the stocks are too weak for even me...
banshee shocks bolt right up and are a bit stronger. if you have the $$ to spend you can go aftermarket and have them set to your size.
or you can do like i did. get a diamond J widening and shock conversion kit and use all kinds of shocks. 400ex, z400, raptor, yfz450...
i have a pair of banshee shocks for sale if you need them.