x2

FYI, when something with a carb is cold and running rough just quickly work the throttle a little (tap-tap-tap). The extra fuel from the accelerator pump will (or should) make it smooth right out. (A lot of guys will actually just do this instead of using a choke.)

Some of my crap:
1963 C-30 flatbed dually 292/SM420
1965 C-10 LWB fleet 250/column shift 3 speed
1965 C-30 9' stepside 250/SM420/4.10 gears (my DD)

Website I made for my crap:
http://www.66submarine.com