Hi, I have a 67 327 that I am in the middle of re-building. When I picked up the motor it was just the block and heads and intake manifold. I am getting close to being done and am working on the oil filter plate. Now I guess there is a by-pass valve ?? that is suppose to be before the bracket with the two bolts that the oil filter screws into. I guess I am a little confused and have never seen one before. When I went to the parts store they have the adaptor plate that bolts in … but they do not have the by-pass valve…I am suppose to use the old one.. Is this all true?... If so I guess I am on a search to the junk yard ?? .. Anybody know were ells to look?.. Thanks.