It’s much more complicated. The Eagle car intake is without the variable runners and makes 363 HP in it’s base form. The truck intake is controlled by the truck PCM and makes 390 HP as a base.
The VVT is different too, with different operational parameters based on application.
The simple answer is that the 5.7L Eagle car intake is better than the previous generation car intake and flows about the same as the 6.1L aluminum intake...but it has better thermal properties than the 6.1L intake under a closed hood. Add a hood scoop like the SRT used with the 6.1L and the heat transfer properties of the aluminum are better.
I told you it was complicated.