Flying a 2002 C-172 had power loss just after takeoff, getting about 800 RPM. After we came back and landed, we told the mx guy what happened and he shrugged it off and said it's a well know problem with the Lycoming IO-360 in the Cessna's. The problem is that it's the same exact engine as the O-360 and therefore was not designed to be injected, so what happens is that the fuel distributor sits right next to the block and gets too hot - vapor lock. All they need is a nice little heat sheild to do the trick! All you 172 drivers...watch yourself!