I have a factory B16A3 in a 1995 del sol. The problem is that when i am
driving, and press the clutch in, the revs drop like a normal car
would, but mine drop further *below* the idle, then go back up to idle.
it hasn't stalled yet but at it's lowest point idles very low 100-200.
and its really annoying because you can never tell if it'll stall.

i just wanted to see if anyone else has this prob.

it never happens when the engine is cold. It's problematic when the
engine's lukewarm.
And seems to do it less after its reached FULL operating temp.
it is the WORST if I drive the car, park for 1 hour, then go drive
again. then it gets really bad.

Suggestions of where to start looking?

Thank you.