Yes, and that is why the intake manifolds on an engine with separated intake/exhaust manifolds might need heat when warmed up.
For what it is worth: the 235 Corvette dual-exhaust manifold had a heat riser. And, early 216/235 Fentons allowed for the intake manifold to bolt to the right-side exhaust header (although, with no heat-riser "flap", as I dimly recall) .
