A more appropriate question might be where to find a carburetor small enough to work in a dual application on a 216. Since the port spacing is the same on all those engines, making the manifold fit isn't much of a challenge. Making a too-lean engine perform is another matter entirely. I can't think of many less-desirable situations than an over-carbureted 216! Back in the early 1960's, a high school friend put a 3-carb manifold on his 51 Chevy coupe, and then adapted Stromberg 97 2-barrels to it. In less than a week, he was back to running a single carb. The thing never got out of his driveway, which had a slight upgrade. It caught fire twice from backfiring, trying to make it to the street. Maybe a couple of carbs for a CJ-2 Jeep 4 cylinder?
Jerry
