Are you trying to set/adjust the idle? If so, are you aware that the idle is not adjustable via "a set screw"? The idle is controlled via the PCM/IAC and is not "adjustable" except by re-programming the PCM. Therefore if the idle is incorrect this likely means that something else is wrong.
In general trying to resolve idle problems by adjusting the 96+ idle stop set screw is a bad idea especially if not done correctly. Likely well create more problems than it resolves.
Here's some more detailed information on how to trouble shoot idle issues.
http://www.allfordmustangs.com/foru...ng-idle-idling-rough-post2260649.html#2260649
In general trying to resolve idle problems by adjusting the 96+ idle stop set screw is a bad idea especially if not done correctly. Likely well create more problems than it resolves.
Here's some more detailed information on how to trouble shoot idle issues.
http://www.allfordmustangs.com/foru...ng-idle-idling-rough-post2260649.html#2260649
