Ended up throwing in a 38 pilot and a 110 main. Got rid of the sputtering at full throttle... have a little flat spot up at the highest rpm. May step up to the 40 and 115 as you did. I don't have the exhaust on it yet, so not flowing quite as much air out as I would hope to be.
Gonna try to get a ride in tomorrow morning to check on the plug after putting some miles on the new setup.
Thanks again for the info everyone!
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