For this discussion of the six-pack divorced choke specifically, if your running with blocked off crossovers (cold intake) and your choke is fully open at operating temperature then the choke spring has been detuned or is otherwise out of its original specs for spring tension vs temperature. In that state there will not sufficient spring tension for correct cold start/running as originally designed. A newer six-pack divorced choke or an older one still set at its original specs, will not be fully relaxed without crossover heat or additional heat provided electrically. The choke system was designed to have crossover heat, without the heat, the choke will not function as originally designed.