Where to buy Heads

I'm surprised this hasnt come up yet in this post...You cant run Edelbrocks or Indys with Quench dome pistons. And, when you're using them, it's very important that the head chambers and piston domes be set up properly. Without it, the quench dome can promote detonation. I'm doing one of these right now. I'm running 452 heads, but they have to be carefully fit to the shortblock. There has to be between .035-.040" clearance between the dome top, and the polished chamber roof. (yes, chambers should be polished...) As such, I had to have the crank index corrected and the block square decked to blueprint height. (that way, the quench dome stops in the same spot for every cylinder. Once the valve job is done, I'll get the heads back disassembled, polish the chambers, do the port work, and clay the tops of every dome and chamber, to see what i need to do in terms of head gasket and milling to get the .040 I want. I'm pretty sure this is why these piston dessigns are not "top of the sales list". You need flat tops, or domes designed for the new aluminum heads, or you'll need to trim the domes and spark plug reliefs on std domed pistons to run angle plug heads like Edelbrocks, Indys, or Bulldogs.