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      03-29-2018, 02:45 PM   #1380
MHD Tuning
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Quote:
Originally Posted by louielouie View Post
I live in LA, and the 91 octane is causing timing corrections. If I wanted to pump e85 to supplement, will I need to purchase and reflash the e20 map?
you can add a gallon to help timing corrections. Or mix more e85 and go for the e20 (EWG) / e30 (pwg) which will provide a nice power bump.