i would say your not getting enough gas. I have seen on here where guys say that the stock carbs are good till 70 hp or so. if that in the case then your prob right around the hp where you would want to think aabout getting new carbs.
Man..... almost 40 pages on this thread and you guys still dont see the big picture. It dont matter if your a shearer guy or a sniper guy, ill still be waiting for you at the finish line with my R2s!
Judge my intakes are also to big for the airbox to fit in there in the stock location. I just made little brackets that hold the box in place a few inches back.
My r2s fit like a glove. They also fit with an airbox for guys who see wet trails. You Guy might be missing out on the best performance pipe out right now.