The Holley also has the bolt in baffle, that bolts into the the pan. I assume that the Milodon pan has something similar welded into place. One thing that the Holley pan has, that I didn't know it had until I needed it, is that the windage tray will accept a 4.050 stroker crank without mods. Pretty beefy one at that. Hold your tongue just right to get it to pop into place tho.