Well fellas, went out and fired up the car, big time exhaust leak. Snugged the nut and the JB gave way. Ended up taking the manifold off. It appeared the JB never set up. It was soft. Not sure if it was old or I didn't mix properly. Wire wheeled the tab and manifold. All the JB came off. The tab still fits. Needs some more cleaning with brake clean. Anyway, have to find someone that can do the repair.