seems in this part of the world GM stopped stocking prop valves for 67 to 78 GM cars.Does anybody know what prop valve will work for 1967 chevelle.All I could find from Jegs or Summit was adjustable ones.If I knew what one would work I would search some junk yards in the area

Almost anyone who makes a conversion kit has a non adjustable proportioning valve available. Most of them even look like they were made by the same company. They aren't identical to original, but you can get the mounting brackets that attach to the master cylinder hold down studs.