I have an older 230cid gm I6 with dual Rochester single barrel carburetors. The front carburetor has a choke but the rear doesn't. The choke uses a bimetal spring that utilizes the engine temperature to open actuate. The engine does not like to start cold. Once the engine is warm it starts instantly. I have tried to adjust the choke but it doesn't make much difference. Cold or Hot the engine runs great... What can I do to enhance the cold starting???
