Hi all new to the forum. I have searched the forum, but cannot find anything similar to my "problem." I rebuilt the carburetor, new plugs, wires, cap and rotor button on an S83P. Now the truck starts, but idles WIDE OPEN and I mean like the throttle is on the floor! I have adjusted the fast idle screw and it does not phase the idle. I have also open the choke manually and it makes no difference. I can only let it run a few seconds and tinker because I am afraid it is going to cause engine damage due to the RPMs. I am at a loss. Any help appreciated. Thanks.