Chris, something ain't right or wasn't right if you were bending springs with the factory A arms and breaking shocks. That said, I never used Moroso "trick" springs on the Chevelle.
I'd be checking everything for square as well all attachment points for a crack or broken weld before I'd run it down the track again.
Made over 4000 passes with my Chevelle, never bent a spring or broke a shock("red Koni" too) and the A arms were the ones installed at the factory in 1968...