Maybe I'm just lucky, but ...
My GMC 228 with a Carter YF 964S starts COLD with the choke pulled half way out in any temperature from 20F to 90F ...
... in less than a second if sitting overnight to 3-4 days
... in less than 3 seconds if sitting for a week
It doesn't seem like the bowl goes empty in either of these conditions.
BUT (big but) it does have a 12 volt battery spinning a 6 volt starter.
'57 GMC 102, Original 347 V8, HydraMatic, 3.08 rear gear, added A/C, disk front brakes, HEI, AFB carb, '98 Honda Black Currant paint. T-boned and totaled 10/12
'52 GMC 152 Stake Bed, Original 228, SM420, added A/C, HEI, disk front brakes, '67 Chev 3.55 rear gear. Gets used as a real truck.
| 
