Hi guys Just wanted to know if i can use new OEM rockers with a new hot cam? Or is there a aftermarket rocker that is up to it? What do you all think about the stage one cam with the 310cc kit? Will I have more or less bottom end than the stock 250? Also What do you think about the xr only header with this combo? If i use the header as well will i lose more bottom end? I Want to set this bike up for hard enduro so good bottom end is important to me. Thanks for your help I am new to rebuilds.