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Plug gap could be something to try, good suggestion. On the B58 there was some... Healthy debate over that 😂.
When troubleshooting the previous issues, definitely flashed back to stock/pump gas and confirmed the issues weren't tune related. I've done some kick down acceleration runs and logs on 93 and didn't see the same issues. I suspect that if there is an issue, it's small enough that it runs fine on 93. It also runs fine on E50 for most driving conditions, only causes an issue at very specific, very high demand WOT conditions.
I've considered switching to Ecutek and putting a flex fuel sensor in place and start over with a brand new baseman. See if anything changes. Pretty big $ commitment to do that, tho.
Next step this week is adjusting to an E40 blend and see if the issue persists. Thanks for the input.
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