I would say this is a good spot to bluff, but you need to bet a good size. I would even opt to overbet the pot because he will be aware of the fact that you know that the board paired and it will look like you want to get max value from an ace-high hero call.
The reason we want to bluff here is because of his PFR range (12%):
77+, A7s+, K9s+, QTs+, JTs, 82s, ATo+, KQo
We can safely eliminate the pairs, since he would most certainly cbet those. He never has a 6, but we can! (range advantage; we can defend suited connectors)
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