Duty cycle too high... I had Eugene tune my car too, and we never even bothered with e85 because I was already at 80% on pump gas!
I have 1050x and Walbro 485
Is your FPR Working? 442 WHP should not be needing 90% duty cycle. Hopefully you figure that out, but it sounds like maybe your fuel pressure is not raising at a 1:1 ratio.
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