front end sits too low

How are the bushings on the control arms? If they are shot, it will sit low. I'm using /6 bars with my small block and have enough clearance. The original 318 bars were shot, and I couldn't get it to adjust high enough, but part of it was the bushings, which I replaced at the same time. I also bolted a 1.5" X 3" piece if rectangular tubing to my K-frame to protect the pan just in case the front comes down too hard. It hangs just a hair lower than the oil pan (charlies deep pan) so the tubing will take the hit instead of the oil pan.