If you are using the above carb you will need a flange to attach the SCAT hose to the air intake.  A poster in the general discussion group came up with an inexpensive solution.  Part # 10350-10 at Aircraft Spruce can be used to fashion a flange plate by welding or riveting a flat piece of aluminum sheet to it.   If anyone has a better solution I am open to it.  This is the last piece I need to…