With our puke gas, 11:1 is not recommended. With 10.5:1, good solid FT cam, those heads, TD 1.7-1.6 rockers you should easily make 600HP. I did a similar engine a few years ago but with -2 cnc ported heads and it made 590 with a small 950HP carb and 610 with a dominator and 2" adapter but it was too high for the guys hood. And it was only 10:1.
Brian