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

I wish i would have understood that before i bought my springs.:(
A 9 sec car probably was a lot less them my full body car thow right?(curb weight)

It's not a hollowed out shell, but it's no street car either. Don't take my word as gospel yet. Like I said, I could be wrong. It just seems I remember something funny about how to choose what spring for the rear of these cars.......for racing anyway. For a street car it's easy. @72bluNblu will know. I tagged him. He'll come in here and tell me how wrong I am. LMAO