You pulled car lengths on him? Are you sure it was an LS1, and not that 6cly SS look a like guy. I raced skurge a while back and it was real close. I have done a few little things since then, and when I run LS1’s it’s real close!! If I had 3 passengers there is NOOO WAAAYYY I would pull on them. I vote something was up with the dudes driving, or with his car.
edit: what is a “vert”?