Congratulations - sweet!
You can't go wrong with a carbed EVO - no sensors, no chain tensioners, no cranks getting out of true, no excessive heat build-up, no fault codes, or whatever - just a solid ride...
They are easy to work on, and getting moderate HP increase is easy and well-proven. Only issue I can think of is IF you ever want more displacement - those cases are not good for boring out (not sufficient material too work on).
What are the spec's - anything done to it?