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MakerBot Print is our newest print-prepration software, which supports native CAD files and STL assemblies,
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I have rebuilt 100's maybe over 1000 of the 20R and 22Re .I even raced this engine in what was called Pro 4 series on 1/2 mi. asphalt oval Now retired . This is an Outstanding model and I like what you did for timing gear setup (not for racing :) _ ) but for being practical .I just finished the block and now onto the main caps ,i will do all the black parts first.The block came out perfect .Your work is greatly appreciated.

Thank You ever so much  , ALM