Sup' every one just put in a JG Edelbrock intake manifold the instal went in pretty good but Im having an IAC problem. Its on a manly stock b16 A2 in an 1999 Civic Si. I tryed swaping IAC's with another buddy and still no change. When the car is cold it revs between 2100-2500 rpm. When it warms up the idel will drop and rev no less between 1600-1700RPM. I check for leaks useing Acetylene and everything was fine . Any one got any ideas would be great help thanks !!!!
Or experience installing this type of manifold.

 

Sounds like a vac leak if its that high. Did you replace the intake manifold and throttle body gasket?