hello all, bought new truck and have a few questions, have done a little searching but havent really found what i want,,,

this truck has a rebuilt 6.5 out of a 94, the injection pump is from a 97 i am told, the truck runs pretty good,
very touchy on the throttle, in low range it bucks like a mule, when i start it if you dont burp the throttle the motor revs sky high, it also smokes bad,
no boost or egt yet,,,

i have a mechanical pump from a 93 6.5, also the pedal, cable and injector lines, i would really like to change this truck to the mechanical pump setup for reliability in this ne montana country,

i have access to the computer and the under hood wiring harness,
i would like to hear from anyone who has actually done this swap, do i need to change out computer and wiring harness or just the pump and lines, should i upgrade turbo,,

i have a diamond eye exhaust and a new crossover sitting here as well as a k47 air box,

i had a 93 cummins for a long time many mods,,

any other thoughts appreciated,,