Back in the day, when I worked in the lab and had access and drove a 1959 Volvo in the frigid midwestern winter, parking on the street, I would take the battery out, bring it inside to keep warm for the next morning, then re-install it, pour about 10 mL of diethyl ether onto the strangely vertical carbeurator air filter, and that baby fired right up every day--no problem
Does this mean you didnt have what all the rest of us had: an electric wire and plug hanging out the front grill connected to a block warmer? Of course and extension cord reaching to the street could be a problem.
Monona