"This morning we got aggressive with the setup and we tried some things that didn't really work, so we went back on it for qualifying and didn't quite hit the sweet spot," he admitted "Looks like we were less than a tenth off from being in the Firestone Fast Six [but] if you miss it by a hair, you're going to be on the outside looking in.
"Eighth is in the top 10 - we can start from there and still race for the win," he insisted. "Optimistic about that, just disappointed that we didn't get the DHL Chevy into the top six."
As for the pole sitter, Power was far from confident that it would be plain sailing for the #12 in tomorrow's race.
"I think it will have a lot to do with the weather," he said, saying that if it didn't stay dry then "It's just going to be one of the typical mixed-up IndyCar races where no one knows who's going to win.
"We just have to be smart and keep heading towards what we've wanted for a long time - which is a championship," he added.
Full qualifying times
Full Saturday morning practice 3 times
Full Friday afternoon practice 2 times
Full Friday morning practice 1 times