hello i need help, preliminary inspection indicates: multiple cylinder misfire PO300. compression test indicates low compression for cylinder #2 perform differential compression test found faulty intake valves, remove cylinder head and verify visually found melted valves and leaking down, machine shop work done including new valves, install cylinder head back to specifications and mitchell procedures, verify timing chain marks, rotate engine and check for clearance ok at this time , start the car and surprise there's no acceleration ,runs under 500rpm's no gas pedal cable looks ok, not visible restrictions to air induction, and no current codes, random misfire po300 when pushing the gas pedal to the floor , i believe it is in( safe mode) but not sure any help is good thank you..
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2001 Saab 9-5 Aero 2.3L