Well, both. I haven't heard of 25-30lbs of boost on a new Hemi. A 6.1 based TT 426" a friend built is looking at 8lbs of boost in the 800hp range.
I dont know much about the chassis build, but supporting 1000hp+ isnt easy or cheap
Twin turbos on a 318 huh........seems like a bigger cu inch small block would be a better place to start.
Not knockin the idea, just different is all.......keep us updated on what you find