I don't know if i can put somes Adam's dyno sheet here, but every body here know that Adams at AB Mods make somes crazy engines (and i've two of them and it's simply killer).
Look at the OS 28XZ dyno sheet. In stock form, the OS 28 is way more powerfull than a LRP ZR30 ( i have had both, so i know what i mean), and this OS 28 put 1.97 HP stock.

Now look at the Mod graph, this OS put 2.51, and it's one of the MOST powerfull big block available now.

So if somebody believe that an LRP 30 put out 4 HP +++, i will sell it my OS .15 CRV and tell it that this .15 make 2.5 HP at 56000RPM

http://www.abmods.com/Dynosheets.html