I put the garret Turbo Kit on my 2.2 LT sedan. Running at 12 pounds of boost. She ran fine for awhile and now is leaning out. Is this a Fuel Pump issue? I hit between 12.0 and 12.5 in 3rd and 4th gear on the wide band. Would a Walboro 255 be a good try on a fix of this problem? Also if upgrading my fuel pump is the way to go. Is there any extra precautions in installing this fuel pump that I should be aware of or is just putting it in going to be okay?