To expand what Ron posted, the large fitting on the passenger side goes straight out toward the voltage regulator, curves forward and downward along the square frame tube along the inner fender panel to eventually curve downward and back toward the
oil pan near the alternator to the large fitting on the passenger side front of the Aviaid pan. I have yet to see a pic from an original S/C that shows this clearly, but it definitely does not go behind/below the headers, past the starter and along the block to the pan.