I have a 96 Civic EX that is using some oil up. I just bought the car and installed 2 new exhaust valves (they were burnt), new head gasket, timing belt, intake mani gasket, PCV valve and valve cover gasket. The bores in the motor looked good too. Under normal driving conditions and when i start it, it doesnt put out any smoke, but when i get to about 5000-5500 RPMS it start pushing a lot of blue/gray smoke out. Where else could it be coming from?