Engines with lack bottom end power?

273 said
i looked at the dyno number a bunch of times, the 300hp been dyno'd a few times over years, Richard Holdener re dyno not to long ago as well as a scrapyard 5.9l and the 380hp been also dyno'd a few times.

Problem is that dyno test usually start at 3,000rpm, a few at 2,500, so there is not much info about torque below those rpms.