the 2.3 fomoco is a double tough little motor with a pretty big aftermarket following . there is even a bit of O.E. performance upgrades ! look to the circle track guys for used ( cheap ) parts there are mini truck and four cylinder classes were the 2.3 rules ! I'm honestly surprised more people havent made the conversion . if I,m not mistaken , the earlier four plug head will pull the most power on a late model bottom end , check the web