Congrats on your new ride.......
Take it slow and do it right the first time. There is good info on here so read as much as you can. Find someone on here that knows these cars inside-out and trust them. If you ask 100 people a question you will probably get 52 1/2 different answers.
Get her running and driving in tip top shape before mods. Mods on a car that has problems will amplify the problems.
Do one mod at a time and learn how to tune for each mod before doing the next.
It's a slow process but I think everyone will agree that the end result is worth the time.
Have fun....spend lots.