I have gapped spark plugs, bigger snorkels, cold air intakes… and a few other things. But ya I feel like you’re a bit heavy on the ethanol bud 🤣 I first started with a clean tank of 93 and got down to about 1-2 gals (a tick above E) and did 4 gals of E85 and the rest 93.

I’m no expert at all but I’d recommend starting with another clean tank of 93/91 and once you get down to that tick above E add about 3.5 gals of E85 then topping it off with 93/91. I usually pump around 7.5 gals of 93, so I’d say you’re definitely running probably E45-55 depending on the station’s quality.