Request help with M1 alky

I need to replace The carb bowls due to corrosion. is there anything better than direct replacement holley parts. I saw some quick fuel peices that were aluminum and anodized, and or saw some parts that are designed for ethanol. Maybey they would last longer.

How do you red the plugs or can you. They all come out looking brand new except for 2 cylinders (2 & 4) they always come out kinda rusty looking. Could that indicate a problem lurking? Like water or oil in the cylinder?

I have read that the fuel should be stored in metal containers. Why? I have some stored in good quality heavy plastic jugs. Is this a problem?

How would I know if there was ever moisture in the fuel. How would it effect the performance, what would be the signs?



Thanks for responding