Rick, Jen's is a '62, and is probably from a car. The triangle at the front, before the exhaust, has a threaded hole just to the rear of the triangle, with a fitting and a hose running up to the bottom of the cannister. The other fitting from the cannister, runs down to the bottom of the block, on the opposite side of the exhaust. I don't know if that was the right way to run an add-on filter, but that's the way this one is. Hope that helps...
