Edelbrock performer cam, timing set, and springs are probably the best bang for the buck on a 351M-400. These will give you a good idle, good low end torque, and good driveability. I think you can buy the complete setup for less than $250.I've searched and cannot find exactly what i'm searching for. Does anyone know what cam, timing set, and valve springs are my best bet for a low-mid RPM 351M. Bone stock but will end up going Intake and carb when I dive into it.