As Steve said, keep it away from the headers. With an FE engine like yours, you can (assuming you have remote
oil filter adapter) bring it up the front of the engine from the block adapter and lay it alongside the valve cover. If you can locate some OEM clips, you can put on two of them under the valve cover bolts to keep the line from moving around and chafing. One more clip hooked to a bolt in the end of the head and you're in business. (Just use an already threaded hole in the head.)
What ever you decide to do, it is critical not to put the line where it will get cut, burned or rubbed.
Another tip: whether the line is plastic or copper, make it longer than needed and coil up the excess under the dash. Sometimes a need to shorten from damage will arise. I have had the most trouble at the fitting going into the adapter getting crimped or bent. Also keep a couple of extra brass compression rings around in case of just such damage. It's pretty hard to get the old ones off without damaging them once they've been crimped.
Last but not least: If the line is plastic, cut it with a razor blade on a hard surface to keep it round. DO NOT use side cutters or tubing cutter on plastic.
Al