I need some help with a starting point for jetting my 34 mm carbs. right now mods are t5 pipes, reeds, k&n air filter with the air box lid removed, +4 timing and a very milled stock head(17 cc). Elevation is between 4000 and 5000 feet and right now temp is too friggin cold, about 30 degrees during the day. I am going to have the cylinders ported (dune port), remove the air box and install clamp ons and switch to 34mm carbs.I dont know if it helps but here is a link to the carbs on fleabay carbs