Noise from engine

all good stuff. I like the trans fluid idea. I did find the issue on the exhaust leak i removed the passenger side manifold and the center ports had blow by on the bottom of the gasket. Looks like the manifold was sanded there and letting exhaust by. I RTV'd it just along the bottom to fill in the space. I'll let it sit and try tomorrow evening. I heard somewhere that sb mopars used to just bolt the exhaust manifolds right to the head no gaskets or shims. Anyone know of this?