I'm up in South Bend but I don't really have a buick... but atleast it has a Buick motor. I have an 89 TTA. There's about 2 or 3 guys around here. I haven't really gotten to know them yet. One of them runs 10s that I've seen at the track.
Dude Kip lives in the Clarksville, Jeff area...He has like 6 stage motors sitting under his work bench n stuff...He does good work, and can get you whatever you want usually at a pretty good price.
My buddy Casey has a GN in Corydon, it rocks out pretty good.