Just looked up the '78 Regal Turbo, that was it. It was a two toned bronze. I had a 10 bolt in my '79 Camaro with a 350 horse 327 built to quite a bit more than that. Of course it didn't have that poncho 400 torque, but it held up fine to 4,000 rpm clutch dumps. Like I said though, it was not a 400 Pontiac in front of it. It actually held when the clutch didn't.