[Healeys] off by 3/16"

[Don Day]

I'm at the point on my frame off rebuild of my 67-BJ8 that I have the motor and trans in and I'm now installing the carbs.I installed the throttle shaft into the fire wall and then into the throttle bracket that mounts to the intake manifold.My problem is the holes don't line up with holes in the intake manifold,there off by 3/16".If the motor could move forward 3/16" they would line up.What am I not seeing?

 Thanks List
  Don