I have to ask a question here.

The colder a liquid is, the more heat it takes to evaporate it. Liquid fuel doesn't burn, only vaporized fuel burns.

If you send cold fuel to the carb, it seems to me you would have to run a richer mixture just to get the same amount of vaporized fuel, to burn.
What happened to the rest of the liquid, unburned fuel ?

This is a different argument from having colder intake AIR, which is already vaporized.

If the cold fuel particles don't or can't absorb enough heat in the few milliseconds it takes to travel from the carb discharge tube to the cylinder,
it won't burn. And it doesn't necessarily all evaporate in the intake stroke, or even in the compression stroke.

I have heard of bracket racers going through a gallon and a half of fuel in one run. There is no way all that fuel is burning.