1968 Match Race '383 Road Runner' vs 'Cutlass 350 Ram-Rod'
The W31 Olds produced 325 hp same as the 350-4v in the Cutlass. Yeah, and the 340 Mopar only made 275 hp. ;-)
These were the days of playing hide and seek from the insurance companies. A lot of the makes were playing coy with hp. ratings. The W31 did make 325 hp at 5400 rpm. Take it to 5800 and it goes to 350 hp.
Chrysler did have a COPO operation of a sort. The 69 440 Darts were factory produced as ordered by Grand Spaulding. The COPO Camaros went through Nickey Chevrolet and Dana Chevrolet IIRC.