Mustangvt6

I have read 64 & 65 repeatedly to put in a repeatable habit in flying my Mooney 201J with a lycoming IO 360A1B6D Fuel injected non turbo 200hp. What is different, if any, in operation of the 4 cylinder vs the 6 cylinder in the articles. Also, Do you have a source for an over square chart for operating my engine. My lycoming engine manual does not address over squared.
Thank you,
John