Setting up a Kawie KLX140L for some little dirt track events after the enduro season is over. My planned motor setup for now is a K&N clamp-on (part#R-1100) stock pb20 carb, stock internals, FMF powerbomb header and PC4 slip on. Need a good Jetting setup, and this is where I'm stuck. still stock jets for now but I've been running it stock for years. All the parts are here as well. Planning to go with a cam'piston, valves and porting over the winter. Engine will mostly be running to the middle to upper RPM range. A little help will be very well appreciated.