@Barklessdog:
Would being large be frowned upon in the ring?
I guess you would have to ask the show people, but back in the day I think it would be considered "off type". In some breeds, size can be a disqualifying factor, but I don't think that is true of Basenjis. Please correct me if I'm wrong.
Edit to ad:
"SIZE: The ideal approximate size of dogs should be 17 ins. high, and 24 pounds in weight; of bitches, should be 16 ins. high and 22 pounds in weight. Length should be very nearly the same as height. Variations may be permitted in these approximate measurements, bearing in mind that the Basenji is a lightly built, Gazelle-like animal, and that any coarseness is a serious fault. While a 17 ins. male is preferred, size must never take preference over type. "