Draft tubes changed a bit over time old ones have a oil fill cap (make sure you have a good gasket there) . Later valve covers have an opening for a cap which could be also an air filter but your original cover will be ok.
Yes once you do this it will no longer be considered stock, but easy to change out if you are putting in a judged show.
Last edited by JiMerit Boltr#43; 03/21/2018 1:34 AM.
