Poor hot idle caused by ethanol gas? Whaddya think?

How is it some of us can run 10 or 15% ethanol and not have these issues?

If you are going to run pump gas you MUST change the way you think and make the changes necessary to deal with it.

Pump gas is now formulated for EFI so carb tuning needs to be addressed.

If pump gas has ANY alcohol in it you need to think about getting heat out of the system. Whatever that takes.

The first thing is you have to at least reduce the heat applied to the carb by the exhaust crossover. That’s number one.

Of course, if you can’t change the boosters in your carb, you have to be careful about taking too much heat out. You’ll know if you do because the engine will burn more fuel, make less power and the plugs will look lean even though you are feeding fuel to the engine like a mother.

So you have to be careful and thoughtful about what changes you make.

Maybe you just buy a Cool Carb spacer and that drops the carb temperature enough to clean up the issue(s) you are having.

That’s the only carb heat reducer I’ve seen that actually works.

So think it through. You have to get some heat out of the carb.

How you do that and what other changes you have to make take some serious thought.