So you put in a new K-frame (like swapped to a spool type or?) and swapped over your lower arms or were they already on the K-frame? I've done a few front end rebuilds and they can get wonky- I'm not expert by any stretch but I would crank up the torsion bars and get that to pull in as much as possible, because it will settle back out.
The other thing you mentioned is when you roll backwards it straightens up....what do you see happening there. You have another set of eyes on it while that is going on?