New car finally hitting the track: estimates?

The slips are hard to read because of size. To be .3 faster in the first 60' and be .4 slower at the stripe, something strange happened. Where on track was all that 60' time lost?

Top end. I shifted into overdrive the first pass. The rest I ran it out in 3rd. Also short shifted 2nd gear real bad. Like probably at 70 ft.