riky2stroke

i need some advice if anyone can help. i am in the uk,and banshees aren't as popular over here as in the US. i am currently building my motor up. i have a set of 68mm cub cylinders,with a noss cool head,a 4mil stroker long rod crank,and i will be running 35mm keihins fitted with powerjets.oh,and i have fmf fatty pipes. i want a rough starting point for the jet sizes. is any body running this set up? im not drag racing,its a road quad,so i need some bottom end power. any help would be much aprieciated.