hey guys, thank you for the information!
I will see what I can come up with here w/ jetting changes.
Bill, my mods are:
2004 Yamaha YFZ450
Ron Woods full exhaust
Cam mod
CP Race Piston 94mm
Velocity Intake w/ airbox removed
I'm in DFW, Texas which is roughly 600ft above sea level. Temps are roughly in the 50's these days.