Wow. I have a '93 Ranger w/ the 2.3L and 5spd. It's running low in #1 cylinder but I barely manage to get 21mpg after I adjusted for the speedo/odo reading low. I thought I was doing bad till I found that my speedometer was reading 12.5% too low. But still I'm only doing okay for what EPA gave my truck in FE ratings.

Maybe I should try the Honda bucket seats. The ones I currently have were swapped in from another ranger; nasty and dirt stained. But 18lb Honda seats will be quite a bit cheaper, brand new, than the 12lb cobra seats I was looking at. Sheesh you just listed over 600lbs(est) of weight reduction. That's 20% of the curb weight of my truck! If you included a few aerodynamic mods I imagine it would have done better FE. But wow, that is pretty drastic compared to what I did.