I had to beat a few dents in my windage tray so the crank would clear. It's a tight fit between the crank and tray and the tray and
oil pan. I've read in one of my dyno books they remove a qt of
oil in the stock Mustang 5.0 motor and gain HP.
A windage tray is good investment in HP. When the crank aerates the
oil, bad things can happen.
Dwight