Use of fuel booster pump with IO-360 engines
The POHs of some (most?) aircraft with Lycoming IO-360 engines require the booster pump to be On for takeoff and landing whereas others require it to be Off. Specifically, the Cap10b/c POH requires the pump to be Off for all operations except priming and emergencies. Presumably it can't cause an over-rich situation so why not have it on at times when losing the engine would be an embarrassment?
HFD