You have to build a combo. It's not just the head. Different heads work differently with different combos. Compression is also a factor. I have AFR 185's simple little TFS Stage 1 cam, 1.72's, and just a "little" compression. I am making right around 400 rwhp. BTW, I still have more tuning.
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"Gripping the wheel his knuckles went white with desire, the wheels of his mustang exploding on the highway like a slug from a .45. True death. 400 horsepower of maximum performance piercing the night, this is Black Sunshine"