What's the story on heat shields on the bottom of Ford aluminum intakes? I don't have one on the bottom of the 63 dual quad intake I purchased and the seller made a point of saying so. However, from a cursory inspection, I'm not sure it ever had one. I don't see any holes or signs of fasteners on the bottom that would have secured one. I have see a picture of another manifold that appeared to have a shallow metal pan-shaped shield on the bottom. I've also noticed lifter valley shields for FE motors - which would appear to function just as well to keep most hot
oil off of the manifold. Is that what most everyone is using>
Dan