Mystery B block intake....

Wrong, wrong wrong. The DP4B and Ch4B intakes are all about bottom end. This intake is a DP4B made for B block engines. (350,361,383 and 400) They are not for the RB engines. (413,426 wedge, and 440) These intakes are VERY good street intakes with lots of bottom end and flow to 5500 or so.
I don't know...I just pulled the info from a Hot Rod test article on the 'net. The test was made on a stout 440. I would, like you, think that by the intake being a low profile unit that the torque would be low end.