In stock form, the carb's circuits aren't seperated as they should be - with idle screw working bottom, needle working middle, etc.
He didn't give me any details on what exactly he does to the carb - it is his 'secret sauce'.
Ron relayed to me that his carb mods give you have finer adjustment on the air screw - an 1/8 to 1/4 turn on the air screw does more. This also means that there is more (better) seperation of the carb circuits (less pullover from the needle).
BTW - I believe Eric Kangas has used the power now - I don't believe he was impressed. Providing a seperating blade on the filter side of the carb does little.
Ron @ RB-Designs sponsors the forum here and I am sure he can provide a more detailed (and accurate) picture for you...
jeff
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