well by fuel economy being my focus, i meant that i'm not going to build the truck to be a powerhouse, thats what the camaro is for
the S10s with the 2.2L from what i've seen get 22-24 city.
i was doing research and i found that between the different ecotecs they got anywhere from 22-27 city mileage which would be perfect, though i could deal with it if the 4.8 for 21 consistently.
i would also like to have an engine swap under my belt and the 4.3 is going to go out sometime, i figured that swapping in either motor would be more of a plus than spending money on a jasper, a crate, or rebuilding the 4.3. plus i always need something to do so this could be that something for a while