I have several K&B .40 RC engines in control line planes. I have them in the full throttle position. Is there any way to convert these to a control line style of venturi / needle style. They seem to run fine as I know but I am a sport flyier just for fun . In other words a novice for 35+ years. I am sure that a correct venturi throal is best .
Any help will be appreciated.
Thanks , jim z