Without cheating that is, restro glitch, mods, necromage perk, and other means of cheating or exploiting the game don't count... I'm talking legitimate means.
I've used alchemy gear, smithing gear, perks, Azidhals armor set, and the sallow regent black book and I have managed to get the Chaos enchantment humming at an impressive 337 damage... but I feel there's more, something I'm missing,
Have you managed (legitimately) higher chaos damage... if so... what am I missing?