My /6 is a gas pig when it's cold outside. Why?

The elevation here is almost 4000 FT and that may be the contributing factor. Ambient temps below 40 F were always a bit of a pain till warmed up. Making sure the choke-stat is properly adjusted is a big part as previously mentioned. When we had blizzards I often used a cardboard T-stat.... As also mentioned you can put in a bit more timing and help it just remember to pull it back in the spring.