Does anybody have any old tricks to get more power out of an engine?

Whats the Make, Model and application.
What kind of problem are you having with power it has now?
Exceeding the governor speed on all small engines will put the connecting rod through the side of the block.

This post was deleted by "certifiedtech"

To answer your question we need the make, model and application of the engine in question.
How many RPM`s is it turning now?
Exceeding the max, governor RPM`s wiil throw the connecting rod trough the side of the block.