hey guys just finished new top end running wiseco .20 over k&n drop in filter no lid on cover and fmf exhaust, i jetted carb using 148 main and dropped pilot to the 4th notch i have cleaned the carb thoroughly a couple times but it will not stay running unless choked air is backed off 2 1/2 turns i did notice the intake boot is cracked so just ordered 1 would that make that much difference i would assume so just double checking to make sure everything is right thanks for any help