Fuel mileage mods and alternative fuels

Yeah I know those 4.10s are hurting me, that's why I put the taller tires on it. A gear swap is expensive and time consuming though I may have to go that route eventually. I should have mentioned my truck is an 06 so gear selection is limited. Also I've not been able to find anything except stock injectors for it except for the tips and they are all expensive.

I've talked with other guys who have installed 4" and 5" aftermarket systems and they say it didn't make any difference unlike the Fords and GMs which I guess don't have as good of an exhaust system to start with.

I have however purchased a beater $300 88 Omni. So far though I just can't bring myself to drive it. :)