Thanks wheelintoy for that link. I was able to quickly locate mine. I have 90k and no exht brake so it wasn't nearly as dirty as that one one the link. But, none the less, it did have a carbon buildup on it. It was amaizing how clean it came out after two squirts of carb cleaner.
I am one of those people plagued with the 16 mpg. I have only an EZ and no matter how soft I drive it, I have never gone over 16mpg. It doesn't bother me that much, but this will be interesting to see if I break over that 16 mpg milestone.