Recently my cars been acting up when trying to start it hot, and ive tried a few things but cant figure it out. The carb is a fairly new oem replacement rochester carb and its in good condition. The car starts perfect when cold, even with no choke it cranks as soon as you turn the switch, which puzzles me. I was doing some research and read about heat causing vapor lock and such inside the carb, and this seems like the most logical problem. One more thing i was thinking of is that my distributor cap needs replacing? Thats the only thing i havent done lately is the dist cap, i last did that about 2 years ago. Would the timing have an effect on the hard starting when its hot? It only happens when i park it hot and let it sit more than 10 mins then try to start it, it eventually starts but when it does start it sputters and blows out black smoke for a few seconds. What do you guys make of all this? I figured maybe someone with a little more experience could share some of it with me.