Single Plane or Dual Plane? The Great debate!

mike / MRL ..
I am running one of the vintage Holley STREET Dominator manifolds on a warmed up 318 .. I know, not even stout enough to be on your radar .. but .. the guy I bought the manifold from ran in at the strip on the same motor that he ran an LD340 on, and he said with small runners used on the old holley Single Planes they actually were better in the low end torque range than some of the newer dual planes ??... any first hand info on this statement or comments ??