Wow, a bit gutless at low rpm...
I bet that can be corrected with some careful VCT tuning. The 5.0 gains a ton of midrange and low end when the VCT is optimized.
Its almost kind of VTEC-esque the way it shoots up so fast, i wouldnt be surprised if it was actually done on purpose for whatever reason. Also, i feel we kind of expected a car running all the way out to 8250 rpms to be a little lack luster down low; cant have your cake and eat it too.