won't stay running after going hiway speeds

What is your question?

This car starts everytime and will run hiway speeds fine but when I get to a stop sign it dies, if I have been at hiway speed. It will restart immediately but when I put it in drive to go again it dies. It stays running fine if I am going slow like in town driving speeds. Never dies at stop signs then. After it has sat for a hour or so it will finally go when put in gear but will die again after driving short time at hiway speed.