Yes we are aware aftermarket cams will do that, and we're looking for far more than 400kw, on a stroked 3.5 block, custom manifolds.
The 2.5 was fitted on the 3.5 block by a previous workshop. They gave up, job half-done (needed engine management and tuning). The car drove, albeit in limp mode.
It's not my intention to keep secrets. Far from it, I just dislike babbling about things that aren't finished. Once I'm confident everything works I'll be more than happy to share. Results > talk.
A picture > 1000 words