Following an full engine detail at a restoration shop, my 1947 Lincoln V12 had no power. Unfortunately, the shop went out of business and offered little help resolving the problem. Since then, I've had the coil, distributor and generator rebuilt, replaced the battery and starter and we still have the same problem. It starts great with all cylinders firing, but just does not have the power it did prior to the engine detail. Any advice on how to further troubleshoot and/or resolve this problem would be appreciated. Thanks, Gary