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if you're stock..well since u have 91 too.. i would just run map 1 for more consistency and safety. map 5 auto tuning is cool wen u mix some e85 or race gas otherwise i used map 1. u don't really have to wait to try some e85 (start at 25%, log, and increase by 5-10%) but if u got misfires on 91 u might just want to replace all ur spark plugs just to be on the safe side and not have that issue come up later as u mod more or run higher octane/map
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