I am having a strange issue where once my engine is hot after a drive when I turn off the key the engine will sometimes try to run for 2 or 3 seconds more and wont shut right off. It only does it after it warms up after a drive and doesnt seem to do it any other time. I have been searching all over for what might cause this and cant seem to find it online. I have checked the timing and its good. It a 289 with a 4B Edelbrock Carb AVS2. Any ideas what could cause this? I have search all through the forums with no luck yet. Figured I would reach out and see if anyone has any advice or suggestions. Other then this issue I am trying to resolve engine runs solid.