The 1070 is the founders edition? (With Blower one)??
I have one 1080 SC With overclock and she don't get 62ºC
No, they are custom ones.
if you can simply put a fan in the middle between the two, it should lower the temp pretty well
I have just a fan, so powerful that when I put it perpendicular to the table, it fall and then move randomely on the table due to the big airflow. I'll probably get a real fan, but I prefer waiting to have a real case to put my rigs into (since that's the configuration I chose to apply to my future builds).