I went with a Milodon Stock replacement for my 408. It has some basic baffling (I had to modify it for the oil pump pickup to clear.) I figured it was cheap insurance to have straight pan rails and baffles.
Scott

Scott 1956 Dodge Custom Royal Lancer (408 Stroker, 4 Wheel Disc Brakes, Rack & Pinion, 6 speed) 2002 Dodge Ram 1500 Quad Cab 1976 Corvette