Not easily the control valve would have to ON and then turned off % duty cycle to retard the cam - if the valve ever failed and they do, engine damage would follow.
I'm going to have a discussion with the cam grinder... With the cam heat treated it will take special tooling (diamond) to make the corrections. My guess is it will be less expensive to replace the cam.
51 GMC 4.2 turbo Can't solved today's problems using the same technology/thinking that created them
