[Superfan1]

Effective immediately, the upper supercharger pulley size on the COPOs is increased from 3.125 in. to 3.250 in.The upper supercharger pulley size on the Drag Paks is increased from 3.375 in. to 3.500 in. The Cobra Jets with the 327 engine have a weight reduction from 3575 lbs. to 3525 lbs.
It's about time that the Cobra Jets got something in their favor and the COPOs and Drag Paks are penalized.