My money is on the LS1. I find this story tough to believe however good kill I guess. You see if you had just you in the car it might be a little more believable. None the less your saying you had a car full and started pulling like he was driving a Yugo. Remember you said it yourself you went 13.3 with just you in the car which would not be enough to take down an ls1. I would like to see a run between you and James who has a stock LS1. Let me know how this turns out.