10% Ethanol will not start……no fire??

Your bypass regulator is after the carb, right? If it is before that might be a clue. Since you have a bypass you should be able to just jump the fuel pump on for 30 seconds or so and then tell us what happens. At least then we can be sure that any and all air is purged.

Do you have this system with the regulator before the carb?
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Or this system with the regulator after the carb?
selecting-the-correct-regulator-for-your-car2.png

I personally think the second system is much better.

I honestly don't believe it's the ethanol at all, we're basically all forced to use it and even the most simple fuel systems seem to work fine (My friend has a 71 Demon with a 318 Magnum, 600 Holley, and a mechanical pump and it starts almost immediately with 2-3 pumps after 5 months of winter storage with doing exactly nothing).