I'm running a 7mm cub , shearers , 30m bored and tappers to 32mm I believe . carbs running 155 mains and I'm not sure on the pilot , the bike will run good until I get to the flats and drag it will launch 2 gear override to 3 and them won't shift and if I get it blows the plugs out of the head ? And closes the gap of the plug Jetting or timing ? What do you guys think
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