Thanks Hoyt, It's interesting that a 270 was made into a 302 at that time rather then starting with a 302.The builder sure used a variety of manufactured(Packard valves,Cadilac valve springs) and home built parts. Noticed the 2 Stellings breathers ventilating the lifter/pushrod chamber.I'm not sure what may have been accomplished there.Do you know?The 261 I'm rebuilding came with one attached to the valve cover to ventilate thru the upper valve train. That makes more sense to me for pressure relief of the lower end.Maybe I don't understand correctly. Help me out.
