1967 Chevrolet Corvette L71 427 V-8. 435 Horsepower, 1/4 mile in 12.9@111mph was the fastest.

Close runners up were the 67 Plymouth GTX with the 426 Hemi had 425 HP, and finished the 1/4 mile in 13.5 seconds@105mph, Ford Shelby GT500 putting out 355HP with the 428 CJ which finished the 1/4 mile in 13.6@106 mph, and the '67 Pontiac GTO with the 400 V-8 which produced 360 HP and finished the 1/4 mile in 13.37@103.4mph.

The official fastest production car in the US was actually the Ford GT40, but I am assuming you mean a car that the average consumer could walk into a showroom, and drive home in. If my assumption is incorrect, then the Ford GT40 is the fastest production car in 1967.Ford GT40Chevy Corvetteare you talking top end or drag race 67 roadrunner was hard to beat off the linethe ford pinto station wagon