Yes. one or two per needle. I thought the 18t would help the low end since it takes less revs than the stock sprocket or maybe I have it backwards could it be for high end ? 
sometimes ya' gotta hold a candle to the devil.-06' Blk Spdmastr,TBpipes,Plrs-Blmth,3Trns,AI Out, ,UNI,130/40,1shm-Ea.,TBS ndls.
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