While returning from GSMTR I was running down the interstate when a black cloud of smoke filled the passenger compartment and left a fogging trail behind me. A quick pull off the side of the interstate I see oil dumping out from under the front of the engine. After towing the 40 home and several gallons of degreaser, I found a "freeze" plug on the front of the engine pushed out slightly. I rebuilt the 2F less than 5000 miles ago at which time I installed a high volume oil pump. I'm just wondering if anybody else has experienced this problem. I'm planning on epoxying the new plug in when I put it back together but again wondering if anybody has any good ideas.