I want to replace my air cleaner assembly to a K&N 14" diameter x 3" on a 1971 Caddy Coupe Deville 472. I found these, (links below each one), but don't know which one will fit best. Any help??

--Matt

Air Cleaner, Chrome, 14 in. Diameter x 3 in. Filter Height, 2 3/4 in. Total Height, 1.25 in. Drop Base
http://store.summitracing.com/partdetail.asp?part=KNN-60-1280&N=120 4294925239 4294924498 300852

Air Cleaner, Chrome, 14 in. Diameter x 3 in. Filter Height, 4 5/8 in. Total Height, 9/16 in. Above Carb Flange
http://store.summitracing.com/partdetail.asp?part=KNN-60-1264&N=120 4294925239 4294924498 300852

If your wondering about hood clearance, I would try to mock up the stock air cleaner to be the same height as the aftermarket options and put 1 or 2" pieces of clay on top of the cleaner to see how much they squash when you close the hood, of course closing it gently on the first try.