Infraction: 1. All posters are to make an effort to communicate clearly.
Message to User:
Start your sentences with capital letters and end them with proper punctuation. Always capitalize the first person pronoun "I," no matter where in a sentence you use it. Don't start a new line every time you start a new sentence. Don't make unnecessary and lazy abbreviations like "equiv."
Also, it sounds like you answered your own question -- although your napkin math does incorrectly assume a 100% proc chance.
has black magic weapon enchant gone up in dps value with the new stat system?
if i remember right, black magic's equiv haste increase is around 71 (250 Haste / 35 sec ICD / 10 sec duration) vs the standard 63 spellpower enchant