I forgot to mention that in my quest for more boost I originally tried stiffening the spring in the waste-gate. After you figure out how to open the spiral spring that holds the cap to the waste-gate, you'll see a nut on the end of the waste-gate valve. Tightening that nut all the way down will only get you to about 12 psi so you'll want to remove that and get some washers from Home Base like I did that are the same diameter of the spring. I used 4 washers and the boost went to 20 psi. Obviously you'll have to disconnect the boost limiting air pressure switch located on the intake manifold. If you don't disconnect the pressure switch you'll notice when you get on the highway that at around 18 psi when the pressure switch opens and the switchover valve exposes the ALDA to atmospheric pressure instead of the 18 psi it will feel like you took your foot off the pedal until the circuit closes. This can be dangerous if someone is tail-gating you. Good Luck & don't smoke too much!