Ok, for the first problem it sounds like you are having an issue with the iac, try cleaning it, that sometimes helps, if it does and doesn't last long get a new iac, but use oem ford for electronics, there is a major quality difference. I would change the fuel filter and check the plugs too, I'm of the opinion that 87 is one small step above cat piss. It costs $3 less a tank, just not worth it when you can get the better gas.
For the second, I'm assuming its a manual
trans, in which case it sounds like the pilot bearing or the throwout bearing. If it does the noise with the clutch pedal released its the pilot, if when the pedal is depressed the throwout bearing. Adjusting the clutch cable may help, it gets tighter as the clutch wears and can cause the throwout bearing to touch the pressure plate all the time, there should be 1/8-1/4" between them when the pedal is released and should contact when the pedal is pressed. If its an automatic my best guess would be a problem with the converter.