Hooked with a black 977 turbo on a long on ramp. I kept right up with the guy up to about 100 MPH and passed him when he got out of it or gave up, don't know which. I could not pass him, but he could'nt get away from me either. Wish I had been in my 1965 Mustang GT (way not stock !!!) . Turns low 14s on street tires with the headers closed, low 13s on the goofy gas. Got to get a little more out of the STS. Got any ideas?