Hi SKRAPR,
I haven't been to any of the shops around Charlotte yet since I've done all of my own work thus far, but I've been looking into it since I'm considering having a supercharger installed. I found this post in another forum that seemed to give some good info on Charlotte-area shops:
"Stay away from Underground Racing. I've heard of many bad experiences from many different people. Do a search on this forum and there's a post several pages long complaining about this shop. The premier tuner in the Charlotte area is Custom
Performance, and they are behind the speedway. They tend to be a bit pricey and slow to get work done. Also, CPRacing is gaining alot of respect with local folks. They have contracts with most of the major supercharger manufacturers to do warrantied installations and they send customers to CPRacing form all over NC/SC. CPRacing is on South Blvd in Charlotte. Ask for Ralph and tell him Dave sent you. Great prices on parts there. Finally, Atlantic Racing is a small shop in the Indian Trail/Monroe area. The folks there are really nice and very helpful. Prices are a little less than Summit or any other catalog. Small showroom, though and not much selection. They did my ring and pinion as well as the gears for two of my other friends. Good folks. Ask for Jerry."
Hope that helps. (If it does, thank Ol' ****** in the Stangnet.com forums.)