MARK ANTHONY

I HAVE A 1998 LEGACY OUTBACK, 2.5 TWIN CAM. PROBLEM IS THAT IT DOESNT HAVE A LOT OF POWER, ESPECIALLY UP HILLS. IT HAS NEW TIMING BELT, WATER PUMP, CAM AND CRANCK SEALS, PLUGS, WIRES , FUEL PUMP, FUEL FILTER, CRANK SENSOR. TIMING , WHEN BELT AND SEALS REPLACED SET NO POWER. TIMING COVER REMOVED AGAIN, TIMING BELT,OK. TIMING CHECKED AGAIN ABOUT 18% OUT, CHECKED BY TWO REPUTABLE MECHANICS. MASS AIR FLOW SENSOR OK. THEY CHECKED CATALYTIC CONVERTOR, NOT PLUGGED. NO CODES DETECTED. DONT KNOW WHAT ELSE TO DO, ANYONE EVER HAD THIS PROBLEM BESIDES ME? ANY INFORMATION WOULD BE VERY HELPFUL. THANK YOU !