I have a 2000 f150 harley. 5.4l 355 gears i just recently trying to get the best possible mileage out of it. i am currently getting around 17.8 to 18.5 is there any way to bump it up a little more??? i was getting 15 driving how i wanted to but now i keep it below 2 grand and take my time accelling. i have a drop in k&n and sct tune on it muffler deleted and that is it.

 

I wouldn't complain about that there. Sounds like your getting the best you can. LOL. I wish i was geting that.......