According to this article on Leftlane News:
http://www.leftlanenews.com/ford-beg...ang-spied.html
The 5.0L is expected to make 400hp, 400 lb-ft. If true, GM has their target to beat. See, this is why we've had to wait for a later release date and limited information. GM has their bogey now, and we'll win as a result (assuming that article is accurate).