The tires will "center" themselves as you drive down the road because the front spindles have positive caster, like the front fork on a bicycle - they lean backwards from bottom to top at about 5-7 degrees.
Each side of the car has a tie rod going from the steering rack to the spindle. How the steering wheel is centered is based on how wheel the alignment shop adjusted these tie rods - which also control toe in and out.
When I align my car before a race, I frequently have this problem. It is easy to get front toe correct, it is harder to get front toe correct with the steering wheel centered.
Assuming your toe is correct in the front, here is what needs to be done to your car (this is pretty easy - 10 minute job if you have done it a few times):
- Turn your wheel straight and visualize which way your front tires are pointed - to the right (e.g. your car will go right if you hold the steering wheel centered). So, you need to move the front of each tire to the left the same amount.
- Loosen the lock nut on the front passenger tie rod and screw the tie rod into the tie rod end making it shorter (moving the RF tire to the left).
- Loosen the lock nut on the front driver tie rod and screw the tie rod out of the tie rod end the same amount as the other side so as not to change overall toe setting, making it longer (moving the LF tire to the left).
An alignment shop will know how to do this.
As a related caution, keep an eye on your harmonic balancer bolt for a few days - those things are notorious for coming out after you take them out and put them back in (actually supposed to use a new bolt when you put it back in). This is the big bolt in the middle of the crank shaft on the front of the motor that holds on the harmonic balancer. I lost a motor last Sept when mine came out. Most good shops will either key this bolt or put red locktite on it to keep it in - neither of which is called for in the service manual. :cheers: