I have the 210 in a TF GS P-51 that is 23 lbs. The engine and exhaust fit completely with in the cowl and make lots of power. I can do loops as large as I want....on my first take off the nose went left quicker than I was expecting and I yanked on the elevator as it started into the bean patch with almost no speed. Long story short, the 210 pulled that Mustang off the runway and saved my bacon. I am using a Cline regulator and a Pitts style Slim Line muffler.

Frank Baity
AMA 38026