Paul, Did you replace the acumulator. If so, then if you have a the old fuel pump with built in check valve that may be the problem. The new Fuel Pump has an external check valve which can be changed if the problem comes from that in the future. If you want to try something before you go buy the parts, try adjusting the air flow meter 1/4 turn clock and try it again. John hervey http://www.specialtauto.com/fuelsystems.shtml