OK...I have placed an open element type air cleaner on my 302 engine...it is NPD part number 9600-1, it has a nipple opening on the base (1/2 inch in diameter) and my oil filler cap and tube comes with a breather cap elbow (NPD 6767-1) and that elbow does not fit into the base of the air cleaner...I can not find any elbow to attach the oil cap to air cleaner tube to the air cleaner,....any suggestions or help... :wtf Thanks