So your saying you only came on here to ask questions because you were bored?
Heck if you want something to do that you won't regret in the future have a visit with Palmula & her five sisters. That should take up about 3 minutes of your time.
Where do you have your current upstream O2 sensor right now in your dual exhaust?
How are you figuring your MPG? Give us some history on your truck.
Year, Model, mods so far, mileage on engine, drivetrain, size of tires and other stuff like that. To make it easy you can ad all that in your profile sig and then you won't have to do it each time you ask a question.