oil filler cap

Thanks Frank,
I rebuilt the carb and it was full of gunk. I never could get it to run very well with it so I bought a used one and the car runs good. It will start and idle where before you had to feather the gas to keep it going. It also takes the gas well so we are going in the right direction. I am just concerned about when you step on it is when it smokes and the blow by. If you remove the oil filler cap or the pcv cap it will smoke from either of them. Perhaps just letting the engine sit and run is the best thing for it . It no longer smokes at idle like it did at first. thanks for your input.
Tommy