unfortunatly im screwed i have the "go ahead" from my dad but...i can only find pre '01 engines.
thank you guys for going easy on me with my questions i will do some deep searching and try to find the answers to my questions.
on the older 3L block it appears that the IMRC is indeed used

at least there is a computer box in the same place as my existing IMRC on the 3Ls i have found. is my assumption correct?
cross your fingers for me guys im gonna give this a shot.