Here's a super-straight 1969 Buick Electra 225 hardtop sedan in Twilight Blue. The '69 model year was the last for the 430cid Buick V-8. It was replaced the following year by the 455, which was essentially a bored-out 430.
While the 430 only came in the 10.25:1 compression 360bhp form, the base 455 eked out about the same power (350) with a lower 10:1 compression ratio because there's no replacement for displacement. There was also a Stage 1 version of the 455 offered in 1970 with a 10.5:1 squeeze and a likely under-rated output of 370 SAE gross horsepower.
