I did the 3x3 and exhaust and i just cant seem to get it jetted just right. It will run good in the day but seems to surge at night when the air is cooler. It also seems like its top speed is lower now, like there is less high end. Im running full rs2 with the dj jet kit. 155 main with the needle 3 positions down here in omaha ne elevation of 1,090 FT (332 M). Anyone have any little hint. I also was thinking issted of wasteing more time on this crappy carb i would just get a FCR. Does the jetting that comes with the thumpertalk kit work well for almost all or will i need othersizes to.