I reread the entire post. What I don't see is where your specs are at now. One question I didnt ask. Does this car have late spindles like F body for a disc brake conversion? They add positive camber. I personally have never seen too much positive camber with the rear cams all the way in, almost always negative. Add to that it appears you have offsets in the rear location as well? Is that correct? If so and all are in the correct location something else is incorrect. Either strut rod bushings pushing the lower arm rearward, something bent, misassembled.
Doug