what are the best heads being made for la small blocks rite now

I'm curious what you end up choosing and what power you make.

I've been thinking of switching to W-9 59 degree heads next year. CNC'd by shady dell. 1.6 solid roller rocker setup. .650+ lift. 11.5 or more compression (if I can get e-85 in my area). I'd like 600 horse on stock stroke. 700 would be cool. I'm curious to see if I can hit it. But something tell's me I have to go 48 degree R3 block to make the 700.