Pour a can of Sea Foam into the gas tank, top the tank off with some non-ethanol gasoline if you can find some, and spend all day trying to keep up with traffic out on the highway. You'll be amazed at how much better the old rig runs after a few hours of heavy-footed highway driving. Most of us are far too conservative when it comes to making these trucks run like they were intended to.
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!