Here's a couple videos of an F800 with a hopped up 8.3 in it. It has marine injectors and a #0 fuel plate(both from me), 3k gov springs, and an HX50 turbo. It's going from about 20mph to 65. He says it was not even close to full pedal(about half way to the floor). Plus, was only shifting at 2300rpm.
Sorry, you have to copy & paste.