7.3 IDI improve mileage
 

Hi folks,
I've rescued an old worn out '91 F250 7.3 IDI 4x4 extended cab out of a farmer's weed patch. Now I'm rebuilding it, mainly for self-education purposes. This truck will just be a snazzy toy when completed - I have plenty of other Ford workhorses to do the jobs I need done.*

Along with some bodywork & paint, I'm rebuilding it mechanically, including rebuilding & possibly modifying the engine. This truck won't be doing any work, but I'm hoping to improve my fuel consumption as much as possible. I've already replaced the 410's with 355's; replaced the auto tranny with a 4 spd & overdrive. Does anyone have suggestions for engine modifications while I've got it torn apart?
Thanks in advance for any assistance offered.*

Check the IDI forum. You'll get plenty of suggestions there.