What was found
NR 1 ENGINE IDLE IS TO LOW WITH BLEED 45-47 PERCENT N2 ENGINE EXTREMELY SLOW TO ACCELERATE, EGT IS 490 AT IDLE, MUST MOVE THROTTLE 1 KNOB FORWARD TO MAINTAIN 50 PERCENT N2, NR 2 ENGINE IDLE IS TO LOW WITH BLEED ON 48 PERCENT N2 ENGINE IS VERY SLOW TO ACCELERATE, EGT IS 450 AT IDLE, MUST MOVE THROTTLE 1/2 KNOW TO MAINTAIN 50 PERCENT N2, AIRCRAFT TAIL SWAP TO 815. PERFORMED ENGINE TRIM ON BOTH NR 1 AND NR 2 ENGINES AND ACCELERATION CHECK, BOTH OPS CHECK NORMAL. (M)