Like I said earlier get yourself and old Direct Connection book so you can understand the oiling system before diving in. I’ve never had one set up with bronze bushings because of the 600.00 and up cost of doing it. I’ve hand drilled mine and they have turned out fine. Then I use 1/2 inch copper house water pipe. If I live another 10 years I may buy a hone to make it more a slip fit. Forget to redrill one single hole and your engine is toast.