Dealers of the antique parts have adjusted their new stock for the ethanol blends. Here, for instance, is a link to MAC auto's fuel pump, which states: "This pump is compatible with current E10 ETHANOL fuel blends".
http://macsautoparts.com/early-ford-...R3CHL1073533E/
Many of the dealers have adjusted their rebuild kits as well towards the new fuel blends.