GP76 gas engine (with Walbro HDA-246 carburator) Carb Cover

This friction-fit carb cover prevents the prop wash from interfering with the mid-range breather hole on the Walbro HDA-246 Carburator of the GP76 RC gas engine.  It helps to smooth out the midrange when tuning the engine.  It was specifically designed to fit the Walbro HDA-246 carburetor, which is on the following engines:  GP38, GP61, and GP76 2-stroke gasoline engines used for large-scale RC aircraft.  This carburetor may be on other engines as well.  extensively tested on the GP76 with excellent results.  STEP file is included for those who want to remix it.  Enjoy.