So I had the car tuned today by Steve at Powertrain Dynamics and it put down 436rwhp uncorrected on 91 pump. That's 11rwhp more than it put down 70,000 miles ago. It was also hotter today with more humidity than the first time we tuned it. We didn't run it on race gas but Steve made the same changes to that tune as he did the pump gas tune. The only issue is that on our way home from the beach tonight the car detonated in the higher rpms when I got on it in 3rd. I have the base timing set at 10 degrees so I'm going to pull a couple degrees out and see if it still does. If it doesn't then I'll leave it alone but if it does I'll need to take it back to Steve and have him pull some more timing from the upper end.