Hi Brent, I found a couple of articles from Nov 01 Mustang Illustrated an article by Roush on modifying the 390 and also an FE buildup over several issues of Street Rodder. The June 01 issue has the goods on oiling. Send me an e-mail address and I'll try scanning you a couple of pages. It's a pretty standard mod according to them to run a 1/2" drill (not 3/8" like I said earlier) through from the filter side to the
oil pump stopping just short of the end of the passage. Then you take a die grinder and port match the
oil passage to the
oil pump. Go slowly and easy on this with no lube as you don't want to snap a drill. The cast iron is the good stuff on these and drills quite well. I did it to mine and was very pleased with the results.