1970 Buick GSX in Saturn Yellow, at a car show in 2023.
The torque monster in a sport coat. Buick's 455 was rated at a modest 350 horsepower, just 10 more in Stage 1 form, but its 510 lb-ft of torque at only 2,800 rpm topped even the Chevelle LS6's 500. Only 678 GSXs were built for 1970, in just…
