Reeds don't seem to do much for power, only make it start harder. The big flow intake seems to work better on carb models and possibly big bore sleds. I know, not the news you were hoping to hear. However, the BMP mod is an excellent choice for power on the F7's, I haven't heard many results on the F6's. I have the same sled as you and my plugs are damn near white after making a run, I don't know if I would lean it down any more.