cessna 175

My dad and I own a Cessna 175 with a Continental GO-300 engine. When we ran the engine up, we discovered that cylinder #2 isn't functioning properly; its exhaust is cold, running at 200°F, while the other cylinders show exhaust temperatures around 800° to 1000°F and cylinder head temperatures...

We recently acquired a 175 TW conversion with a 0-470 (SA122NW STC). While we have the STC document itself, the plane as no updated performance charts based on the new engine. I know that the STC belongs to Park Robert M, but read in several forums it's basically not possible contacting the...