At this point, I wouldn’t change anything. You want way more performance for your street driving, evidenced by your percentages above. If you are happy with your track performance then I’d leave it be. If you buy shocks that allow for changing rebound (extension) dampening, you will only change how fast (or slow) the suspension acts and reacts. The shocks control the motion of the springs. You can either slow down or speed up that motion with the shocks. If you want to transfer more load (or less) you start with the springs. I’m not suggesting you change anything yet. I suggest spending a bit more time learning about springs, spring rate and shocks and shock tuning before spending any money. That way you can save yourself some money by not making a change you don’t like and then needing to change that change too.
