Has any one tried just adding a 2.40 upper pulley only with a stock tune? Does any one know if the stock tune can pull enough timing with a few extra pounds of boost? I am thinking about returning my car to stock other then the 2.40 pulley due to some small drivability issues I have from either the 127mm CAI or the 65mm scj throttle body. So any thoughts or experience you have had would be great.