Hey guys over the last year I have given this truck a complete tune-up and with your help rebuilt the brakes. Never really drove the truck til Saturday. I was giving her a test run when I stopped and noticed oil had blown out of the fill pipe. I cant find a pcv valve and was told that year did not have one. Any ideas where to start. I do see a tube that looks like it is running from the rear of the carb down the back of the engine.