Need Help Finding a 454 BBC Tune

I have a 1990 454ss that I’m throwing a rebuilt tbi 454 and 4l80e into (if someone knows a good place to find a driveshaft let me know) but my question is where would I find the tune needed for the extreme 11-235-3 comp cam that is in the engine. The guy I got the engine from said “it didn’t need a tune the computer does it” which I don’t believe and I don’t want to have any excess wear from it being untuned. I’ve heard the engine run and it sounds fine but I’d still want it to be perfect. I’m just now learning about old chevy’s but I have a good bit of mechanical knowledge just more modern. So does it need a tune and if so who do I go to for that?