I only have one problem with my Aerovee. After flying, with everything hot, the engine lopes at idle. It runs from 950 rpm up to 1100 and back. The mixture, from rich to lean, doesn't make a difference. The research I've done says it's most likely a vacuum leak. There are only six hose clamps in the intake system and tightening them doesn't help. The only place I haven't checked is the two elbow gaskets on the heads. Any thoughts or suggestions?