Carb idles too high

[SilveradoDude]

So I got a reman carb. Installed it. The truck runs great. But it is idling way too high. I got up in the morning pressed the accelerator and she turned over on the first turn, but it sounded like she was doing 8000 rpm! I pressed the accelerator again she calms down (a little). But still too high. I backed down the curb idle a bit but that didn't help much. I am curious as to how I adjust the fast idle and if it will help, thanks.