Generation IV Internal Engine - what about this set-up?

408 Iron block. Billet crank, billet rods, Diamond nitrous pistons. ETP 255 or 265 heads with Drag valve springs. and a cam motion grind cam. Anyone have any specs on a cam for this motor? It is basically a nitrous motor that will see over a 300 shot. Its a A3 tranny with a high stall.....and no its not a street car. Some cam specs are like 254/267 .65x/.62x on 113 and some have said like 27x/28x mid 700 lift , Im lost. I am going to call cam motion and see what they think. So does this motor sound pretty good? Any advice? What kind of power could I expect?

I'd say if you want to really use that setup, you might want to think about solid roller, I don't think a hydraulic cam can be big enough for what you are trying to do.