The guy that had it before me told me he already broke it in, I asked him specifically

Needless to say.. I will be running it rich for the first few tanks anyway. Iam unfamiliar with these engines and want to make sure Idont bork something
I selected a 15x8 for this prop due to the information I got on
http://www.patternflyer.com/troy/ And a UK site Ifound, they both said 14x10 or 15x8 for the .91