Try not to go down the rabbit hole on this one. The information is out there if you dig, but you'll just be torturing yourself. From the torture I've done to myself, however, I think 70% tends to be around 125-126, probably a little lower on the CARS section. This comes with every caveat in the world attached, since yes the tests are scaled, and also my information is based on the spreadsheets of other tormented souls and their late-night mental self-mutilations. Study more, self-torture less.