Ok. So I am a little new to older vehicles. My truck is a 1978 F-250 with a 351M in it. It has the two barrel carburetor in it with an automatic choke. I don't feel that the choke is working properly. After switching into drive while being cold it tends to die on me. I haven't had the opportunity to check if the choke is actually closing yet. Any other opinions on what it could be would be appreciated.