which pitch prop?

[Jack G]

First let me be clear that I don't know anything about props except that I have bought plenty of them.

However, I read this several years ago and made a note of it. "Every 1/8 inch change in pitch equates to approximately 25 RPM. If RPM is too high, go up in pitch to lower RPM. If RPM is too low, go down in pitch to raise RPM."

Jack