yeah I know... I use to have a 14x8 prop on... but revs were only 8500 max... and OS suggested anything under 10500 I am "overpropping", not getting full power that I want basically... what kinda revs you getting?

to LNEWQBAN

your explanation sounds very accurate, think this can be the problem... I am hoping so actually... don't you think a hot plug can help with this? I have ordered a 13x8 prop its on its way...