Get a diesel and run farm fuel in it. It's not illegal until you get cought, and how many people get cought! All my buddies around here have been doing it for a few years, and havent got cought, infact I dont see how you do get cought.

7.3's are good, my grandpas has 354,000 miles on it, and no major problems. Plus they sound freaky straight piped....with all the black smoke you'll be blowing around town you might be able to pick up some women for once!

I'd get an econo box, they get like 20,000mpgs and gas is cheaper than diesel.