Big Block Engine Builds

I've already got a '72 #630 400 block. I'm planning a 470. Haven't decided on heads yet. Probably ported eddys or stage 6s. H beam rods and ross flattops. Solid flat tappet cam. Thats about all I know right now. I may go solid roller, but I don't think its needed for a 575hp 470. Its going in a 66 Dart. I'm shooting for high 10s, but i may just need 550 hp in a 66 dart to achieve that goal. Any ideas?