Originally Posted by windmill
Theres a statement that could be taken many ways.
but really it says I have lots of spare time.
Right now I am running 40/122 jets and Gossie needles, and will try 120 and 118 jets as soon as they come. Will probably raise the needle a notch when I settle on the main jet. I was running 40/128 with the OE airbox.
It's too soon to tell after only 1 tank, but it looks like mileage may be in the 35 mpg range. Some of that may be weather related as it has been cold and dry with very little wind.
What a great improvement. I wonder if Richard's pvc tube filter will get the same gains? It would be easier for me to copy.
Do you contribute the gains to better air flow and less restriction? It seems strange to me that you can reduce the main jet size so much.