Computer Swap

is it possible to put the computer from my 97 j30 into my 94? also would it be possible to ut a nissan computer so it would retune the engine for more Hp? im starting with this to up engine performance. once i get the money im considering having my engine TTed. then put some new wheels on and a flowmaster system and it will be a sweet azz car :smokin: (if i can get the money and time :banghead: )

sooo...? any answers?