My car has been sitting for 2 years. I changed the plus and oil, etc. Drained the gas and replaced the fuel filter. Car pulls to 6500 in first and second. At the 1000' it seems to stumble at 5 grand. Takes a deep breath pulls a just a little then boggs again. I ran 12.50 @ 108mph. Should of been 12.0 at 113-115mph. I'm thinking fuel pump. I drive the car and don't turn wrenches so please be kind.