GEEEZ, Turk!
Aren't you EVER satisfied? I mean, some guys have to pay EXTRA to buy spark plugs to install in their exhaust pipes to get those kind of flames!
With flames shooting out your side exhaust, some people will think you must have a REAL English roadster with those funny little EYE-talian carburetors......... 'course, it'll be given away when they see that your headlights are not flickering to the pulses of the generator.........
On the serious side, I have had my side-pipes off a few times, and used a variety of tail-pipe shaping tools to open-up or close-down (as required) the fit of each collector to each individual pipe. You'll need to do both (pipe-fitting AND jetting), I think, to cure this problem. Good luck!
cobrajeff