I start my junk at 15 degrees and I couldn’t tell you the humidity but it’s pretty damn dry here. I don’t even let an EFI car start and move that quickly. When it’s that cold I spend about 30 seconds and head for the gate, which is about 75 yards away. At the gate it will sit and idle just fine.
And that’s on a Strip Dominator. This spring it’s getting a tunnel ram. It will be the same.