Coil mounting

Where is your coil mounted? Mine is currently on the back of the manifold, near the distributor. It seems like the heat from the manifold may not be good for them even though that is where they were mounted from the factory. Are they ok on the manifold or should I move mine? Any pics? I am doing the electronic upgrade so I wanted to clean things up while I was at it & wire it all up nicely. Thanks in advance.