cold weather edelbrock

Truck is plugged in when not being used so engine is warm,run 500ml of gasline antifreeze every fill(methyl hydrate)Allready turned choke up several notches,turned my metering rod covers sideways to see spring action at idle in gear rods dance up and down steady so I will go to a stiffer spring,probably two steps smaller on metering rod second step.Also I installed new 8mm pro stock wires and replaced cap and button just in case,covered rad opening to keep cold air out,need new heat stove.Someone here out of 12000 members must ice drag or winter 4 wheel,Edelbrock was no help,if I can't make it work does anyone know how to set up a 3310(750 vac sec.) for the cold.