Thanks for the info guys think I will stick witht he G-75 for the time being and maybe get something else if I don't like it, I do have the in-cowl muffler so this should help....Have been looking at the saito 150 same power as the G-75 and enough torque to swing a 4 bladed prop.

Other question I wanted to ask was is the a problem with cutting holes int ha air intakes under the wing, just thinking for increased airflow as there isn't alot of uninterupted airflow under the wings with the retract bays, servo bays and air intakes....