He did this a few years ago, but the way I remember it is that he
made a bushing for each end of the piston.
Put the smaller wristpin and bearing in and inserted the new bushings
so they would make up for the smaller wrist pin in the larger piston.

This was before he moved to Arizona and after he crashed his first big stick.

The engine did well at lower elevations but was weak at the new elevation.

I can't believe I remember all of this.

Av8tor does this help you remember the rest of the story?