Can someone tell me what combination of oil pumps or what pump I can use on a 1966 BMW 2000cs . The pump that was there did not have an oil pressure tube connecting to the block . The only pumps I see around seem to use the pressure tube. Can I use the tube on my engine with a diffrent pump. My engine has been completly rebuilt and my old pump is very worn. I need to install a new pump but can not locate the same model that was in the car. Thanks in advance