The shaker on a 440 4v is really rare on a Challenger. Does the car have power steering? I had a 70 Cuda 440 4v with a super track pack back in the day.It had manual steering.I think they only made like 234 440 4v spd Cudas in 70. They made many more 6 pack cars. The 440 4v Challenger RT's were much more common then the Cuda. That is going to be a really nice car when its completed.