thanks again for some more info guys. John I am just out of Kilmarnock in the town of Callao.
The paint tinner didn't destroy the plastick but actually started to lift the black off the dash. I may try the 3m marine cleaner as I have some for my boat also. And your right it works wonders for removing that black mold off white vinle seats. The weather is warming up and I can't decide to cruise the boat or the firebird. life is full of desisions
Maybe someday I will get this thing off the road to do a full restoration