Best thing to do is talk to a seasoned machinist that know what he is doing! Dont rely on what you read that is supposed to work! talk to a professional! Check out Slant six forums, Doug Dutra posted a how to blog on stroking a slant! If I really wanted what you are asking for I would find the best engine builder known and crate my engine to him and let him work his stuff! At the end of the day all that matters is, are you happy, do what you want and dont worry about others opinions!