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normally the idle should be about 700-750 rpms with the iacv connected and 500-550rpm with the iacv valve disconected. you have to let the engine warm up to normal operating temperature (the fan come on at least once), then turn off the engine, short the 2 terminals in the blue conector. have all the power accesories off, start the engine, loosen the distributor so you can move it with the hand and with a timing light adjust it. it should be like a red line showing up where the timing should be. also the stock setting should be 15 degrees of advance.
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