I had installed B&M Megashifter. It was an automatic. I also had a 68 charger with a 400. I ended up selling the charger and put a built 440 in the Belvedere. Traded that for a new Mustang GT in 87. Then sold that and bought the most beautiful 74 Cuda' 360. Med blue metallic with the white stripe. It had the ratchet shifter from the factory. I put some work into the engine that thing was fast. No where near the 440 but absolutely gorgeous. I wish I had those three Mopars now.