So the results are in. Sorry for the late responce, had another problem with a usb wireless adapter but got it fixed.
I used unigine heaven (the free version) since it was free and has good ratings. The results are:
Average FPS: 60.0
Max FPS: 126.6
Min FPS: 8.3
This is with custom settings (setting everything on ultra or extreme) with surround for my 3 monitors. It also registered both of my 1080Ti's.
Are these average results for a 1080ti SLI build??