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the idle is only fast when it is first started up and slow down when warmed up.the fuel pump was just changed as well but had this problem before.i will check tomorrow to see if the a/c effects it.
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Being it will idle faster, when started cold, the IAC is working.
The next thing that should be checked is the distributor shaft bushing condition. Take the distributor cap off and see if the shaft will move from side to side.
On these distributors the housing/upper bushing area gets so worn out that the shaft will move sideways so far that the points on the pickup coil pole piece get hit by the reluctor points on the shaft. The parts get damaged and the ECM receives compromised signal for RPM and timing issues.