Thanks for the ideas,

The only aftermarket parts on the car are the rims, and I haven't hit any big potholes. I'll try to be a bit more detailed;

Sitting at the stoplight waiting to go on a level street surface. As the clutch comes out and as soon as the wheels get power, the car and steering wheel pull to the left a significant amount - steering wheel; six inches or so, car; a foot or so. I can stop this by holding on to the steering wheel and not letting it move that way. As soon as I'm at about 10 mph the pulling stops and the car drives perfectly straight.

Does it sound like it could be torque steer - on a car like this? Thanks,