400 BB Mopar dyno test

The step on the IMM is 300rpm. If you take the numbers off the sheet (not the graph) and note the change over 500rpm they look like this:
3K - 3.5K 12
3.5K - 4K 19
4K - 4.5K 2
4.5K - 5K (-2)
On the one I posted:
3K - 3.5K 14
3.5K - 4K 4
4K - 4.5K 2
4.5K - 5K (- 8 )
Not an exact graph to trace both curves, but the torque on the 400 comes up fast, and drops off fast. At least by my perception anyway. It's again just my opinion, but I'd prefer a very flat torque curve for a street engine and that one isn't very flat.
It's not bad power to get. Its not a crappy engine by a long shot. But it IS demonstrative of a short stroke build... ie, steep power curves and peaky rpms. It will need to be coupled to gearing and convertor that puts it up in the 4K range to really be effective. That was my point.