I have the HO kit on my 2005 GT with the stock 3.60" pulley running 10lbs boost. Want to step up the the next pulley (3.48") for a little more boost and get retuned. Vortech site says it will get another 2 lbs. of boost going to that pulley. Anyone do this swap and if so, what kind of horsepower and TQ gains did you see? I would love to go down one more step on the pulley to the 3.40" but that might be a bit much. Its not my daily driver anymore so its time to play :0)