Just got my first Duke, a 1974 860 GTS. Also has lowered bars but a Campbell exhaust. Torquey, torquey, with instant throttle response, thanks to the accelerator pumps in the Del´Ortos. Handles like I´ve ridden it all my life. Cleaned the crankcase 8 times with Diesel fuel and a magnet untill spotless. Change your oil every 1000 miles or as soon as you see dirt. Then you´re good.