Jeremy Boskovich

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    Hi Nick, I’m Jeremy Boskovich from Sydney Australia, we have currently stepped back my sons 3 1/2 McGee to a 3 1/4 , since doing this we have run into a really bad stumbling which eventually clears up before 60ft. The thing is it only does this with the shockwave primary and secondary clutch. When I put our polar quick shift  primary and secondary it doesn’t do it. But it revs to almost 10000 on the shift, we want to run the shock wave set up, I’ve changed the fly weights to c4 36 from c4 38, and has made no difference. It’s like a manual car taking off in second or third gear. I’m quite baffled on what’s going on. I have tightened up the secondary one hole but are yet to try it due to weather. I’d really appreciate any advice regards Jeremy

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