I bought a convertible that was originally a 350 AT. Somewhere along the way it got a 455 4 speed, which I love. As I am replacing parts I try to use original Pontiac parts where possible. I removed a modern stereo system and returned an am radio because I really don't listen to music while I drive, prefering the sound of the engine. I like going back in time and driving a 1960's car. It will never be original, but closer to correct for the period.