There were 2,472 examples of the Stage 1 455-cube GS ... That’s better than the Buick’s 3.42:1. Still, the big-block GS455 also has a few extra horses and lb-ft tucked under the hood: 290 ...

Now, the car is crossing the auction block again with no ... much work on the outside, the Buick has something equally surprising under the hood. It's a 1970 455-cubic-inch (7.5-liter) V8 GS ...