I love your set up. I see you are using the Predator carburetor and was wondering if you removed the govenor and/or made any changes to the carb other that the setup for the throttle?Feel free to ask any questions you may have.
Do you have any pictures of your jackshaft on the bike? I am running a Huffy rear hub (single speed) with a bracket for the chain sprocket on the left side of the rear wheel.
I will probably be running this exhaust I have off of a mini chopper.
Dan