These were done back in late 90's for a guy named Benny in Ga. They had RAP stamped on the outsides, epoxied runners, etc. Recently they were sent to Tom at Champion to remove epoxy, fix cracks between seats, install new seats, valve job, yada yada yada..
My motor that ran 10.57 at BG is now in my ex-TTA. This is a new combo.. see how it goes.