The two single barrel carb setup on a Hudson is known as Twin H Power. It was available starting in 1952. The late Bill Hafker, a KF and Hudson owner, drove his 54 Jet everywhere. He and I drove it to Front Royal, VA to check out a 51K he wanted to buy, only to pass on it so we then drove to Oshkosh, WI to pick up a 49 Nash Ambassador.