408 aluminum head choice for 500Hp

Eddy's out of the box are not that great. can't expect to them to be all good and just bolt them on...thats where they get there shitty rep...its the additional things people gotta pay to have them gone through is what they dont like....I'd go with the eddy heads myself, maybe order them bare, and have Brian @ IMM engines (located in Cali), or Shady Dell, build them up real nice for you.

here's a the links to there shop, you can order the heads from whoever you choose...they both know their mopars!

http://www.shadydellspeedshop.com/edelbrockheads.htm

http://www.immengines.com/