[Brian]

The later pumps will necessitate you having to cut the windage tray. As others have said, use cheap, non detergent oil for the run in period. No STP! Also upon first start up, drive it, do not under any circumstances just run it and rev it up in the shed, just cause it sounds good! Worst thing you can do....you need to load up the rings in order they can seat. This is achieved by driving it.