I have a single Weber conversion kit installed on my B20. I was hooking up the preheat line to the manifold, when I ran into a snag. Weber supplied a Tee fitting, and a fitting that mounts to the head in front where there is normally a blocked water passage. The front seems easy, remove the cover and install provided fitting, install hose that runs into the manifold and and another hose exits out the back. Now the supplied tee fitting ties in to one of the two lines at the back of the engine, but which one? One is the 90 degree that comes directly out the back of the block, the other is the pipe that runs along the block under the exhaust manifold. Does anyone know which of these lines to tee into? Does anyone have a diagram of the water circulation in the B20 engine?


Much appreciated!


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