I reused my exhaust gaskets in rebuilding my engine. I have an exhaust leak, but I'm not sure if it's coming from the gasket or the where the manifold meets the header pipe. I applied some extra torque to the lower bolts on the manifold. I could get to the upper bolts (unless someone knows how. Couldn't find any good info in the factory manifold outside of removing the starter.) I also torqued the head pipe bolts. Still I have the exhaust leak. Is there an easy way to tell where the leak is coming from or is there a common problem with the passenger side manifold I'm not aware of?