Flutter below 2k rpm

mbaird said

I have been down this road of reading plugs while running ethanol. I kept fattening the jetting and the plugs were still white .
I am sure an experienced tuner with a plug reader can do it.
How do you explain raw fuel out the tail pipe and black exhaust tips ? Not to mention 8 mpg on a 260 mile road trip...

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Some where I missed you were running ethanol. That is a hole different tuning game,one I cant help you with.
I know a few boys around here that tried running E85 they all ended up going back to premium gasoline.
What % ?
Why would you want to run ethanol on the street?
The only alcohol I am familiar with comes from Kentucky