That's SWEET Brad! I was able to find the fine line of adjustment between the FPR, Fuel/Air and Idle this weekend on my journey. I drove over a couple of mountains(2400' up/down), around some towns and normal 40-45 puttin'. I would stop about every 100 miles and make a slight adjustment on the Fuel/Air and idle until I saw these steps in power and fuel mileage return: 15-16 on purchase, 18 on highway after FPR, 20.6mpg mixed driving on the most recent tank including two trips (to and back) over the mentioned mountain, 100 miles of highway and rest city.

Tresmon- maybe there's an issue with your Mr. Gasket FPR?? Seems to be adding issues exactly where's it's suppose to help.