ok, so i have a 99 xvs-1100 v-star custom. I have modified the factory exhaust. Rear baffle has been removed and the forward 2 have been drilled full of holes. So very little back pressure. I have removed the factory intake and have installed pods. Removed the ais system. I am having trouble Jetting the carbs. I have synchronized them and adjusted the valves. I have 17.5 pilots, 150 mains, 3 turns out on pms screw. 3 washers under the needle as well. the rear cylinder takes awhile to catch when its cold. Both cylinders have 130 ish psi of compression. I do not know if this is lean or rich. It pops through the intake sometimes. it did exhaust pop on decel untill i turned the pms screw out slightly. My has a batwing, hard bags and a trunk. my last tank i got 30mpg, but i was driving "spirited" and checking top speed. Which was higher than before. I also do not believe it has aftermarket cams. Any help is appreciated. will answer any questions yous guys have. Thanks.