Percolation? Heat soak? Don't drive during summer??

I'm certainly not going to bite on the theory that the car is in the southwest and that's why it's not running good with said carburetor... Like he said it ran absolutely fine before, something has went wrong and I'm sure it's not the carburetor...
When it dies a couple tbsp of gas from little gas bottle.. (this will eliminate a fuel supply issue)..
Have the $6 ballast resistor ready and just plug it in after you try the gas and if it doesn't work you don't have to screw it to the wall just plug in the leads..
It ran just fine on ethanol gas before and now all of a sudden it doesn't for no reason? See why it just doesn't make sense?...