if you do plan on a lot more mods and know you will be needing more tuning then I would suggest getting a tuner. keep an eye open for a used one to save some money. i got mine in 2005 for my DOHC. there wasnt anyone out there who did tuning for it at the time. later DHP did sell a hand full of pcms for that engine but no info on results was ever posted. with learning how to tune i was able to make a new spark table that released untapped power the DOHC had.

but yes if you can find one at a good price get one and start learning. if it is a dhp i dont mind helping you with a few of your first tunes to get you started. any and all changes i will explain to help you learn.