I have an original Motor Trend special edition where all the 1967 Muscle Cars were road tested and compared. They liked the 440-powered GTX and R/T the best because of torquey motor, torsion bars and disc brakes. The '67 Chevelle SS 396 was slammed the most for sloppy suspension and terrible drum brakes. If you did not order optional disc brakes on your GM Muscle Car, you got the same 9 1/2" drum brakes as Aunt Martha's grocery getter six banger. The Fairlane and Comet were not in the same league with their 390. Ford got their crap together the next year, however, with the 428 Cobra Jet engine. This was one of the best motors of the Muscle Car era, but very underrated in posted horsepower and respect. This coming from a 440 Dodge guy.