I am hoping to get about 15 mpg out of it. I'm not that far from it now. Its gotten the best with the 1406 on it. I even thought of an AVS2 . I'll keep playing with it.
Kinda not an answer to my question. I was askin what kinda "difference" do you think would be from the 600 to the 500? In other words, if the 600 gets 15, how much "more" do you think a 500 would get? I bet it's even possible the 500 "could" get less mileage, IF it puts you in the situation to whee you're using "more" of the carburetor, if that makes sense. 15 is pretty good for a big rolling box on wheels.
