After looking at the HP gain per 100 RPM on that dyno sheet it looks like to me it was nowhere near peak HP RPM at 8000 RPM.
That leads me to believe that motor probably has another 60 to 100+ HP in it closer to 8500 RPM twocents work
Hopefully the team will find out where that motor wants to be shifted at on the RPM to make the car go as fast as it can luck work

Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)