The GTO sales declined in 1967 after a successful 1966 model year when the 2-door coupe and the 389 4-barrel ruled the series. The new engines fueled the excitement for the GTO, but the yearly sales ...
1967 was the year when Pontiac finally operated big changes under the hood of the GTO, with the 389ci unit getting stroked to 400 cubic inches. Pontiac offered four engine configurations, and the ...
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