Definately, absolutely, for sure, with out a doubt,
BREAK THESE IN ON 20% NITRO WITH RECOMMENDED YS OIL VALUE (20%) OR HELI FUEL. Run around 3-5 tanks depending on tank size thru them. Id run a 1/2 tank on ground really rich, then take to the skies for another 3-5 tanks , rich, as well.
Run a wee bit smaller prop, so you can get RPMS.