  We study extremal correlation functions of chiral primary operators in the
large-N SU(N) ${\cal N} = 2$ superconformal QCD theory and present new results
based on supersymmetric localization. We discuss extensively the
basis-independent data that can be extracted from these correlators using the
leading order large-N matrix model free energy given by the four-sphere
partition function. Special emphasis is given to single-trace 2- and 3-point
functions as well as a new class of observables that are scalars on the
conformal manifold. These new observables are particular quadratic combinations
of the structure constants of the chiral ring. At weak 't Hooft coupling we
present perturbative results that, in principle, can be extended to arbitrarily
high order. We obtain closed-form expressions up to the first subleading order.
At strong coupling we provide analogous results based on an approximate
Wiener-Hopf method.
