just to add a little, dont go smaller than 3.4 right now with a Fender well intake.
Im happy that you regain boost! happen to me in the beginning of summer, my car was for sale and as soon as i tryed it with boost it wasnt for sale anymore
you will love the stronger pull of the 3.4, i got mine since the beginning of summer, no problem.
another bang for the buck i got was high flow cat (magnaflow or carsound)
really woke it up at mid-to-high rpm.
stock: 15.2@ 92
3.4 + fenderwell intake, colder plugs : 14.926 @ 93.7 mph ( at 22 celcius)
+high flow cat: 14.673@ 95.5 mph (at 12 celcius)