I have a 93 h23a1 and when I take off from a light and am going threw my gears...SOMETIMES when I get the RPM's to 4k the car will start jerking. Something like your car would do if you let off of the clutch to fast without giving it the gas that it needs. I have no idea what it might be...Spark Plugs? Plug Wires? Air Filter? I'm actually confused! Any help will work.

 

Do you have a VAFC? Mine used to do it when I used the VAFCII - when i did street tunes....the fuel just couldn't JUMP at a certain RPM point.

 

No, I am just running stock right now.