Hi Godspeed, and a special welcome to those from the "Land of Enchantment" to the site.
Well, I wish I could help you out on this, but you really have to either buy new shocks that are stiffer or go for stiffer springs. Tokicos are pretty decent shocks and are much stiffer than the Edelbrocks, that would be the cheapest way of doing it. Old Man Emu Nitro Chargers are Very good shocks and can hold up against anything. They are not cheap though. I had a set and liked them alot. Wish they made them for a 4" lift. I am assuming that you are talking about the front, but if it's the rear then all you need to do is use a add-a-leaf and that would stiffen up your ride.
Hope this helps.