Need Michigan Turbo Buick Specialty Shop

[turbotaguy]

I'm the proud new owner of an '89 Turbo TA. The car is a bit of a project. I need help with chasing down some gremlins. Is there a shop in Michigan (metro Detroit area) that specializes in Turbo Buick motors? I'm hoping to drop it off and have it tuned properly with a chip, etc.

I've been trying to call Aggressive in Roseville, but they haven't been answering their phone.

I'd appreicate any suggestions.