If the limb is out of alignment, it is either twisted, or one side of the nock is cut in deeper than the other, and/or was never in alignment to begin with.
If it is a string nock depth problem, you might file the opposite side deeper if you can do so and still retain enough nock area for strength.
You might try heating it and bending it back in the opposite direction. (Remember to bend it a little farther than centered to account for springback.) The most drastic approach to get the limb back into alignment is to sand the edge of the limb in the area of the convex side of the bend. That's the side that's overpowering the other side. Doing so will likely require you to do some sanding on the upper limb as well, on both sides, to keep it in tiller. This in turn, might lessen the weight a pound or two. Or, if it doesn't bother you just leave the bow as it is. Good luck.