Engines with lack bottom end power?

273 said

But technically the 300hp and 380hp makes same power at 2500 rpm and the 380hp makes more power at every rpm point above so even if you never rev past 5000 rpm or spend vary little time there and or above you'd still have more average power, by power curve alone says there's nothing gained for running lesser 300hp crate.

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Or if you never rev over 3k (obviously I'd never advocate for this, but some folks do), there would be so little difference as to be a wash.
The recommendation for more gear and converter though still makes more sense when considering the idea is to get the engine into the power band sooner (stall) and keep the engine in the higher rev range to be able to tap into it (gear). I highly doubt that the 380hp would suddenly become a 'dog' without the stall and gear, but having it will make it feel more like money well spent.
At least, that's how I'd interpret the situation.