Ken Brewer had an improved windage tray made. It's the same as the factory 3/4 windage tray but made from a heavier gauge material and improved drain back. These windage trays are inexpensive and look like and fit like the ones that came from Pontiac, except these won't crack. He sold them under the Tomahawk name. When I bought Ken out I took them over and when I got out of the business I sold the rights to Butler Performance, Butler still makes them. A windage tray is not required for a factory stock engine but it is an improvement, especially for high performance use.
https://butlerperformance.com/i-2445...tegory:1396718