If it is a full flow engine it will have the oil OUT from the pump just above the pan rail, center of block, drivers side. The Oil IN to the galley is higher and to the aft of the outlet. Both of these ports are large pipe thread. Just above the oil OUT there will be a plug that is driven in to make it totally full flow. If the engine is run without these ports connected, and the filter oriented correctly, oil starvation WILL result.
Tim
