91exAccord Stumbles when accelerating warm

Hey Gang,
90 Accord ex 4dr 5sp 95k on 2nd engine

Start it cold runs fine at idle and driving. As soon as it's warm it begins to hesitate/stumble hard from a stop into acceleration. I can give it a bunch of pedal and ease the clutch out to get it moving from a stand still and minimize this problem. This problem developed from a light version of what I described, to this over a 3 month period. Problem used to only be around town, now on the freeway I give it gas and it stumbles constantly unitl I get it up to a constant speed then it stops.

At warm idle has a bit of a miss or it stumbles down a bit. Mostly stays constant. Seems it appears only when I'm requesting some low end torque.

I have:

-replaced the ignitor/coil/cap/rotor
-replaced the fuel filter
-replaced pcv valve
-followed my haynes manual on checking the EGR valve all seems to be in check
-disconnected the vaccuum line from EGR to see if idle improves -nothing
-codes for my speed sensor only. (cuz it's out)

Anything common I'm missing?

Thanks alot.

-Jason

Check the MAP sensor and hose.

you may want to check the temperature sensor and wiring. (honda calls it the tw sensor)