Finally got it figured out. Thanks to Jeff at Whipple. Sent him some data log from the tomahawk and he found the problem was a bad calibrated throttle body. He sent me a new one the next day installed it and now the car is running fine.
Finally joined the forums after year of lurking.
I finished my Whipple stage 2 complete kit install last night on my 2018 Gt PP1 automatic. I started it up and with in 5 minutes at idle the header where glowing like the sun, rpm’s where hovering between 1400 and going up, also have no power...