Two optional engines were available for the Cyclone. The 429 Cobra Jet was the four-barrel with dual exhaust but with the Ram Air induction. It was rated at SAE gross ( net) and had a 720 CFM Rochester Quadrajet 4 BBL carburetor. The 429 Super Cobra Jet, which was part of a Drag Pack option, was a four-barrel with dual exhaust and Ram Air induction, but it was rated at SAE gross ( net), and had a 780 CFM Holley 4 BBL carburetor.