I always remove the carb and empty the float bowls. It is very easy to refill them in the spring through the vent tubes. If you decide to leave the carb off the engine, make sure that you put tape over the opening on the top of the intake.
I also have fairly strong valve springs so I slacken off the adjustments on those valves that are open. I normally place #1 at TDC before touching the valves. I will be also removeing the distributor this year to check the gear for wear.
Since I don't use much
antifreeze in the Cobra, I also drain the rad just in case the heat goes off in the garage at some point during the winter. I don't want to even think about a cracked block.
I normally place the car on jack stands for two reasons. Firstly, it takes the load off the suspension, wheel bearings, etc. Secondly, it gives me better access to underneath the car so that I can inspect everything when I have nothing else to do.
In addition to all of the above, I also seem to pull half of the car apart looking for potential problems or just for something to do. Two years ago I pulled the engine and covered the foot boxes with aluminium. That was fun and it kept me busy.
Have fun this winter,
Wayne