had the smc for 2 months now, very strong runner, tons of torque throughout range. mine came with the stock kehein carb, no resrictions, removed airbox snorkel, removed aft section of the baffle pipe at the tapered end section of the silencer. will change gearing this week. stock gearin is pure street 16/38. wants to rev hard but canĀ“t due to the sprockets, but.!! has great cruise speed and mellow rpm. so ,what do you,want.? great bike, mine is loaded with every accessory that they make. sweet to look at and ride.