You got the 3.09 LSD? His Scat Pack got the 3.90 LSD so quicker launch from a dig if he has the same or better response time off the line so between the power curve of your engines and any differences in torque converter RPM stall is what would make the difference between you and his Scat Pack. Egos or no egos. The best job you could do as a driver is not spin your wheels with good throttle discipline getting out the hole. You know what that demon racer demonology Herman say, "spinning ain't winning!"