Super Stock leaf springs

Yup. The MP suspension manual (that everybody REFUSES to buy) states witht he weight on the tires the shackles should point straight down OR "a little" towards the rear of the car on the leaf spring end. If the pop back up while driving, something is WRONG. I've never once had them do that, although I have pried them down from being popped up against the trunk floor after having the rear of the car jacked up.