As for the RWHP-v-Dyno hp deal give this one a shot. 2975lbs 7.94 at 170.11 Then try 3310lbs 8.21 167.6(fwiw this was at Vegas) interested to see what you come up with.
FWIW MPH is the ONLY Indication of power. ET is dependent on MANY factors. Altitude, track prep, how well the car works etc etc etc
"I am not ashamed to confess I am ignorant of what I do not know."
