Hello, i have a ?75 450se that sputters and once in awhile will just die. Tried to restart but no go. Had to have it towed to a mechanic, and he told me that the points in the distributor had fused together. He cleaned them and adjusted the timing and the car ran great for 3 days. But now am having a problem with the idle. seems to rev at 500 RPM. Is this ok? And also where in the engine bay would i locate the cold start valve? cold start valve because the engine seems to rev up and down when cold searching.
Thanks in advance for your help.