Originally Posted by 32krazy!
when you swapped all your mods did you knock off a vacuum line? mine did the same thing after installing the oil catch can. the cause was reusing the cork gaskets from rob. big no-no! they are 1 time use. ordered new cork gaskets from rob installed them and the high idle disappeared never to return!
This also happened to me, but I got the Po505 code (idle system malfunction).