One of the reasons for the clifford to have run better is the Lump ported head. If you wanted to do a better/fair test try it with out a lump ported head.
All of that testing was done in the first 292 dyno tests 6 months ago, and the Clifford was still superior then, as it is now. Lumps or no lumps, it matters not. As panic pointed out, the Offy is a much older and cruder designed intake, the Clifford is/was designed in more recent times with a more performance minded clientele in mind..
