Discovered the source of an oil leak at the rear of my valve cover. Replaced gasket and half moon seals, leak gone. Good. Started truck and now it idles so slow it stalls. I'm guessing (definitely) that the throttle cable is not set correctly now that I removed and re-installed its bracket at the rear of the valve cover. Guessing for sure since it's the only carburetor related device touched during the gasket replacement. Ran out of sunlight and thought of posting here. Your ideas and advice is very much appreciated. Thanks! Jim