I got dial up, and I'm too old to wait for it-- is that the Frank McGurk dyno tests witnessed by "Racer" Brown article? If so I dont recall any mention of the holes either! This is considered the Holy Grail of old stovebolt motor tests. McGurk also did a similar dyno series witnessed by maybe Don Francisco on rebopped 216 motor (used a pair of Zenith or Stromberg one bbls on his two carb manifold--gave jetting info) I think it was in a 1952 issue of HRM.
You are correct edski . . . that is the article I cross linked . . .
