It's quite possible that someone who scored in the 120s on today's tests would have scored in the 130-135 range on Stanford Binet LM, back in the 1980. But there are other kids who are scoring 130-135 on modern tests who might have scored lower on SM-LM (Kids with super strong working memory and processing speed.)
It's harder to know what someone with 130 on a SB LM would score today, as so much of the FSIQ depends on WM and PS which just weren't part of the old score.
Why do you ask, m'dear?
Smiles,
Grinity