Well, not exactly between York and Baltimore but within driving distance.
Michael's Automotive & Transmissions
White Horse Pike
Waterford , NJ
856-753-0035
He is a member of the MAGNA(Mid Atlantic Grand National Assoc.) club, has a couple Buick Turbo's himself and I've heard 1st hand nothing but good things from his customers.
Also Bill Anderson could take care of you...
Chuck