Here is my problem my 1991 honda acoord stall on the street while driving I pulled to the side of the road waitted about 15 minutes try to started and it stated but it turn of about half of block while driving done the same thing acouple of times. I check the main relay it seems to be fine. Can any body help me.

It's not likely the main relay, especially this time of the year. I would replace the Ignition Control Module (ICM) and coil inside the distributor. Apply silicone heat transfer grease to the back of the new ICM. This is a common problem on old Hondas.