I am trying to put together the beginnings of my 440 for the Challenger and was wondering if anybody knew of a good machine shop and builder in the Maryland area. I want to make sure all the clearances and dimensions are correct for the engine. Rather than putting together a bunch of parts that might not work well together I want to be sure. I can assemble the engine and have in Hawaii and the west coast I don't know of anybody around here I could trust.