This was unexpected Blueprint 350

[jumpsoffrock]

Not trying to rain on anybodies parade, but my best guess is it's marketing protection.
They put together an engine with some combination of modifications, they estimate about how much power with help from the parts manufacturers and engine builders, they lower that estimate by 5-10-15% or so, and plaster that on their website.

Best case scenario, their customers are elated; worst case they aren't sued for false advertisement.