Put the 502 on the dyno yesterday and came away very happy All the pulls were performed with 91 OCTANE PUMP GAS & experienced no detonation. With the 8-71 running straight up (10 lbs. of boost) she made 800.6 HP @5800 rpm's & 725 lbs. of torque. Maximum torque was 792 lbs. @ 4400 rpm's!!! Hope to put it in her new home this winter.