Hello everyone, I bought a 1977 280z last weekend and the owner before me said the car had a fuel problem. Since I've started working on it I've only noticed that the fuel pump is always on when the key is in the "ON" position. The car has air, fuel, spark, and compression, but she doesn't want to turn over and keep running. The longest I've had the car running is about 5-10 mins then I shut her down and she wont start back up. Has there been any other problems like this before with anyone else's car?