[CXPHREAK]

You may simply be more efficiently burning fuel due to a better quality spark.

 

[CXPHREAK]

I tend to think that unless you are doing full throttle plug chops it will be the 78 jet that may need to go up a size or two.

 

[CXPHREAK]

I'm no carb expert so you would be best advised to wait for some of the more carb savvy on this forum to chime in before you go and order more jets or something but the smaller jet would be my gut feeling.



Looking at the mods to your bike in the photo you may be dialling it in for a while.



Also, what jet range do you think you were running in before you went home and rechecked your plugs?



Plonking or revving the ring off it or somewhere in between?