Ive personally never had ice up problems, but I like to run Heet in my rigs, which I think helps. I know that guys who run air gap intakes play hell in cold weather, fuel condenses, ect.
I had to run a water heated carb plenum on my airboat when it had an air gap intake, and that helped, but it was still cold blooded below about 50 degrees.
But none of that's a problem.
And I'm curious, how would cold weather Help it start?