I was running an 11x8 APC and got 11,500 on the ground. Probably going over redline in the air...still holding strong. I would chase the warbird guys around and give them fits. Funny though, I don't know what the rpm is now that it's been gas ported...I just figured it would be the same. The plane will take off with authority in only about 15 feet of runway

The reason I did the gas porting was one of the guys had a Saito 1.80 that was "ported" and to feel the compression while turning the prop through by hand was awesome.