Idles at 15-1800 rpm, with fast idle screw all the way back even a gap. What else can i adjust? thanks.
All the above doesn't work you may have a worn out throttle plate...If the above checks out ok, might want to throw a timing light on the engine....
Sounds like it.THANKS to senior advisers here! Sure enough, the linkage restricted the return of the throttle. Idles well now. However i had to pull the throttle cable forward, and now there is a small air gap at the firewall. Wrong linkage maybe?