E58 400 plus HP Dart sport build

Nat said
400 hp is possible my 340 dynod at 450hp with a decent cam 573 lift 1.6 rockers and trick flow heads . Don't think it was a happy dyno

Cool build. I like them all and appreciate the hard work we all put in to our rides.

If I were set on the combo the op is putting together making the 400hp I would at least take a look at the comp 275 cam with the mopar lobes.