Why does the suspension look like i drove over a rock?

A couple things you have to add into the mix.
It's a heavy car and it a naturally aspirated 408 trying to breath at 6600 foot elevation. That day the adj alituted was 8500 foot........which is and above average air day. have see the adj go to all most, 10,000 foot elevation

1.70 to 1.75 60' a best of 7.76 at 97 mph (1/8 miles)