What does the engine have for cylinder pressure? As bad as the gas is, I have yet to have an issue like this on any of mine or customers'. We have the 10% ethanol fuel, have for 4 years now at least. My truck has run at 220° before when working, and 45 minutes after parking, it turns over 2-3 times and it's fine. I find most of the issues with starting are a result of tuning or lack of cylinder pressure due to wear, or camshaft choice, or camshaft timing. Much more so than percolation issues. JMO.

Well, art is art, isn't it? Still, on the other hand, water is water! And east is east and west is west and if you take cranberries and stew them like applesauce they taste much more like prunes than rhubarb does. Now, uh... Now you tell me what you know.