318 Can't keep fuel in filter, stalls when hot.
Does this look familure?
https://photos.app.goo.gl/RbX6ALGtTBDr2owu5
Note the temp of the filter at the end 151 deg
IIRC alcohol fule vaporizes at 140 something.
I switched to non alcohol fuel problem gone, no other changes.
Thought your description sounds a bit more extreme