408 windage tray

It's not normal to run a 4" stroke with the tray... so wahtever you need to do to get it to clear, do it. If you have to use a few I'd suggest using blue locktite on the windage tray screws. Also, it's a good idea to pry open the slots a bit... And before you tighten everything down for final assembly install the oil pan and make sure it clears the tray too.