Thanks! I started thinking nobody going to answer hehe....
OK....my PSU its fine and im going to buy two 760 4GB
I'm still worried about the airflow and temperature, yes WindForce is a better solution, but it blows all the hot air in to the case and my case is mid-tower with an acoustic solution that didnt helps with temp, this will be a problem?
Maybe someone can suggest a good fans/airflow management?