Vacuum leak at the brake booster??
If the engine is running to hot and lean from a vacuum leak it will "diesel" when shut off.
Also check throttle plate inside the carb to see if it IS closing all the way...


There is enough good in the worst of us and enough bad in the best of us that it does not behoove any of us to criticize the rest of us.
-
-
Be yourself. If you are ever lost, It will be much easier to find yourself if you know who you are!