Yes, if the pitman and idler are both those regular small block and /6 numbers there should not be and centerlink alignment issue
Has this car been recently restored. Was it running and driving fine before the resto?
many M-code cars have had a VERY rough life as race cars. Something steering wise may have been moved by previous owner/racer.
moving the centerlink up and down is a way to change the bump steer to keep the wheels straight when the front end lift way up during a drag launch.
