I am about to jump in and help him rejet his bike back to low altitude specs. When the bike was purchased new we put in a dynojet kit and set it to the recommended specs for the altitude ridden. The butt plug was removed and the air box drilled for more air along with an aftermarket air filter installed. A year ago a hot shot exhaust cam was installed for more top end. I would like to unlock the potential of the FCR carb. I have never really felt it was tuned properly. What are some simple fixes to help the problem ? What are more technical fixes if we get ambitious ?