Was just reading another post about valve covers and noticed that the valve cover for the 1954 235 engine has vents according to the image provided by Pre 68' Dave in TIms post. My 54' which has the original engine (or at least its a 54' engine 0056074F54XA ) has a non vented valve cover. Question - is it important that it be vented? Should I use a vented oil filler cap ?
