91 or 93 tune?

So I have a 2017 Tacoma Sport DCLB... ordered the OV tune and it should be here hopefully tomorrow.
I live in Washington state where Supreme/Premium gas is 92 octane, which is what I run. I just don't know which tune I should use (91/93 octane)...and I've messaged OV tune directly with no response.
Does anyone have any input for me?
 
May have to add bigger injectors and pump... Oh tune to run both injectors simultaneously??? Is there a thread on this subject?
 
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