I have never seen one with a blocked heat riser passage although it's been made for 40 or 50 years so who knows why they vary. I'd take a guess and say they are pretty rare and an additional guess in that maybe it was made as a "competition" only manifold?
I thought maybe you were confusing the Torker with the Scorpion? Me bad.
I've seen them with and without the "fingers". Mine had them. I had three Torkers plus the Motorsport versions for the A3.
Best of luck in finding one.