I never run any ethanol in my hotrods, nor will I! I talked with a owner of a automotive chemical company that makes ethanol additive for gasoline. He said after sitting awhile the ethanol and gas separate, the ethanol eats your rubber and absorbs moisture, his product bond the ethanol and the gasoline together so it cant separate, I said should I be using this? He said no get ethanol free at any costs, use my additive while traveling when you can't find ethanol free. This might not cure your problem but it can't hurt https://www.pure-gas.org
I second the electric pump, also I run a regulator with return line to cure the hot dead headed fuel issue, starts easy for me!