Most schools don't curve a lot of upper level classes, but I've never heard of a school that has no curved classes. Some schools don't grade at all though, so that might be your best bet.
really? thats got to be nice. Mine curves everything but it is on a more favorable curve as you get to the upper level seminar classes.
Northeastern doesnt grade at all but instead gives you a written review at the end of each semester. Therefore, no curved classes. However, try bringing a bunch of written reviews to OCI in place of a resume and see how far that goes.
yale=no grades (just some pass, highpass stuff). equally competitive, still sort of a curve.