Did a test run on Super Tigre G23 using Perry Carb, ran like a tiger using 18x8 prop. I am uncertain as to how to mount engine. The instructions suggest 6 inches from firewall to front of rear prop washer. I think I read somewhere here that this may cause Super Tigre carb to interfere with dummy radial engine.
If anyone has any advise on how far back to move engine on mount to clear dummy radial, I would be appreciative. Also, what was the weight penalty for doing so, that is did you have to compensate by adding ounces to the nose for balance?