Don't listen to the forum heckle squad.
Call the guys at HB speed in Huntington Bch.
They will tell you what you need.
Not the chattiest guys, and they wont hold your hand and show you stuff.
But when you leave, your car will be right, and it will Haul Ass.
I got 265 whp and 350 lbs + on my stock td04 after my tune.