Why TF didn't they continue the low RPM readings at 2K? this is a mild build, we want to know (especially if it drops). Street driving doesn't start at 3K.
It is very difficult to get stable low rpm WOT readings on a dyno. I've not run an engine dyno, but even with a stick getting full load WOT on a chassis dyno has to start at the lowest rpm you can get it into third.
Engine dynos are a little different as they are set up with given rates of accelation. When we see two different engine dyno results, one question to ask is whether they both used the same rate of acceleration.
I agree it would be nice to see the rpms lower but the dyno was not a great tool for that. It was interesting that when Hot Rod tested the 340, it looked like some streetable power (under 3500 rpm) was lost when going to the LD4B dual plane. Of course on the street we're mostly wanting good part throttle, throttle response, and that's another thing that's hard to test for on a dyno...