I haven't taken carb apart yet, but I think I may have blown a power valve. Put new carb on two races ago. Had problems getting motor fired and it backfired once. Then this last weekend it backfired again as I was going past flag stand. Motor will not pull rpms. 7150 rpms with a 648 gear. Should turn 7700-7800. Pulled plugs at track and they were a little on the wet side. Be gentle with me; I'm not a motor man at all. LOL
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