It sounds like it is getting too much fuel. check your fuel sensor. Your choke is sticking open. Buy some carb cleaner. Remove your air filter and spray the linkage to clean it up. Make sure it moves easy. Start your car up. the butter fly on top of the carb will be closed all the way. As the motor warms up this should open up gradually. If it doesn't you have a problem with the choke system and it is not letting air in as the motor warms up.