My truck is pretty similar with a mild 468/th350 3.73 and a Powertrax (wont hold the power and unlocks). First run peg legged to 11. something. Second run drove out of the hole in drive 8. Third run drove out in first shifted manually, 5200 rpms in second through the traps 8.6. My horrible reaction times plus the non functioning powertrax held me back. Poor times aside, it was the most fun I've had with my truck so hopefully you'll have as much fun as I did.