When car is started it does not do it, never does.

I can drive 20 miles at 60-80 m.p.h. without problem after that, then when at first long stop light, R.P.M. CAN go down slightly then back up to normal. NEXT light it may do it again and thats it for rest of drive.

IT will do it 2 miles from my house at stop light or stop sign, so not necessary for completely cold car, but after stop and go for a while it may do it again.

NEVER a loss of power at high speeds, no cel.

I CLEANED t.b. THEN CEL CAME ON AND OFF AGAIN without those jerks forward 2nd or 1st manual gear thereafter gone.