When I come from a complete stop, my car bogs for a moment, then will run strong. However, this is only when I come off soft. If I am launching, it pulls hard all through the gear. Is this bog on soft take off normal, or it yet another symptom of my jacked up differential mount?

 

If you let out the clutch too quickly a low-torque car will bog down. I had to learn to launch my car after losing to a Grand Am.