In the early 2000s I did a 462 Chevy with a 242 @ .050 solid roller, 290's adv, 10-ish:1, Team G and a set of Brodix heads, middle of the road volume, I don't remember all the details it's been a long while. It made 603 HP @ 6100 on Kell's dyno in Vegas.
Very strong running car, all good parts, but it would have taken a lot to get it to 700 hp