I recently looked into the words of power system from Ultimate Magic and it really interested me. I'm looking to make a blasting sorcerer and could use some advice for bloodlines and races. any advice would be helpful, as I don't really know where to go with this having never used the words of power system before.
I'd start by going to the Guide of the Guides, it has several guides to Wordcasters.
(Actually, I'd start with talking to the GM - they may not be too fond of a whole new system at their table.)
Depends on your spell of choice but go either Draconic or Orcish and trade out the first bloodline power for blood havoc blood mutation. Or play crossblooded Orcish/Draconic but if memory serves crossblooded is horrible so I wouldn't do that.