We flipped at the sight of the Hurst four-speed stick poking through the floor of this '68 Firebird. The wacky part is this isn't a Firebird 400 or even a 350 V-8 car. Nope, it's a 175hp OHC six-cylinder car with the basic one-barrel carb-not even the four-barrel Sprint mill. In 1968, the innovative OHC six-popper grew from 230 to 250 cubes. The four-speed was a $185 option with the base six, the same money as a TH350 but oh so much cooler.