I work on pads almost exclusively. If you're towing alot, buying a 99 or newer for the innercooler bigger turbo etc. Would be nice. You can add an IC to a 94-97 (we affectionately call these OBS for old body style). I like the single shot injectors in the 94-97 as compared to the split shots in the 99 and newer. I could rattle on for days about these HEUI motors. I just put a DT360A in my 99 crew cab. Its an inline 6 that international stopped making in 93. Go to youtube and search users pipewhiner and fuzzys69 for some of our Powerstroke creations.