Any ideas on what would be a good choice on Heads.

Hi, I am building a new small block stroker, 423 cu. We are planning on 10.5 piston, with solid roller 600 lift, 244/247 with roller rocker. The intake is a strip dominator and a 750 Quickfuel carb.

I dont have heads yet but not sure what would be the best config to go with or whats the best aftermarkets out their. Any ideas on this? What other factors do I need to look at..?