After doing extensive research, I don't know if it was added to the fastest times list after i made this thread or not. However. Evo performance went 8.8 and made 1019rwhp with a stock 08 gt500 longblock and twin turbos. They made over 100 passes that this hp level and were revving to 7500rpm. When it broke, their research determined that it was the rpm that killed the motor rather than the hp.