Last summer I bought a 85 Vmax that was used mainly for drag racing. The bike is fitted with Keihin flatslides. I am not happy with the performance of the bike and think its a result of the carbs. The bike is very soft at low RPM's but awesome on top. Since I ride mainly on the road, I would like a setup that hits hard at low RPM's. Can the Keihin's be tuned to be responsive at low RPM's or will I be better off to replace them. thanks for any input.