LF stainless steel prop

[kickurbass]

hi
i have an evinrude etec 150 ho with a viper prop 20 pitch....
but im not able to reach my best RPM at wot, i already tried a 17 and 19 with no sucess,
now i think i need to change model
does someone in here have one for sale
either a rebel or raker?

let me know

thanks