Hi Ralph, I'm the Tim that did the tuning. I do agree it's a bit short for that boost level. From memory it made 298kW at 12PSI. We had just raised the boost which made the 309 before running out of time. At that boost I could also heard audible signs of valve float up top, hence dropping it back. Hoping to sort out some new valve springs, go back and add some timing to that load level. This has been a big education for both of us so we're happy with baby steps and learn along the way. I'm on the HPT forums as well, they've been very helpful throughout out the journey. Thanks for your feedback