Engine building brainteaser?

Heres one for you all. You have a stock 350 Small block. The old type before the SB2. Now without adding no additional or after market parts, or machine work, or fuel additives or boosters or higher octane fuel, you can't do anything other than take it apart and put it back together and with all the same parts still in the engine. Nothing can be taken away or added! So then how do you get more power from the engine?Enjoy! :)I am interested in your answers!