high engine idle when warm
my '79 is running extremely well. However, i've recently when the engine is warmed up and i come to a stop at a red light, the engine idle speed remains between 1400-1800 rpm (it doesn't jump around, but stays steady). In order to bring it down i keep the car in gear and ease off the clutch until the idle goes down below 900, where it does remain.
Any ideas?

