It's funny how so many different things are causing this same type of driveability issue.
I hope Lance is paying attention so that 'someone' can add it to some troubleshooting area. I hope this fixes the problem, I never even considered rust and gas.
Tom
You can call me anything you like as long as it's nice.(all lies accepted) 99 Silver Frost SVT. #226 of 2760 Engine: 3.0 power! Unique Stuff: Sunroof control module (#1 of 9) Car Audio: Loaded and loud! Check them out at http://home.earthlink.net/~twilson1726