Recommendations of machine shop..

Jim has a crazy fast Polara he races out at Great Lakes Dragaway, running high 6's. ANother shop to check out is Don's Auto in Kenosha, he builds some stout Mopar engines.
www.kilpatrickengine.com/bjr.htm
Home - Don's Auto Parts & Machine Shop - Kenosha Starter & Alternator (dons-auto.com)