I had fuel delivery problems and had to plug one of the two exhaust exit tubes on this Pitts muffler. They are quite large in diameter and just allowed no muffler pressure at all. Plugging one of the tubes gave me the fuel pressure I needed...no more flame outs when going to low throttle..I didn't notice any decrease in rpm, either.
It's a fun plane...gets lots of lookers at the field, but it's not the rock steady flyer that my pattern ship is. To hold this plane in knife edge is a real wrestling match. It'll never be my favorite, but it'll be a regular flyer. I will seal that canopy, and I'll make a trip to the LHS for a bag of props. Thanks for the tips.