"I'll make this easy for you.
tighten the idle speed and both mixture screws all the way in (not too tight) till they stop."

The above quote is from your reply to a post titled Edelbrock tuning. My question is:

You say to tighten the idle speed screw along with the mixture screws all the way in. It seems to me like if the idle screw was all the way in, it would be idling at very high RPM's. And later in your post, you say "turn the idle speed screw til the idle is approx 800rpm (usually tightening the screw)."

If the screw is all the way in at first, how could you tighten it any more?

I am new to carbs, and am in the process of tuning an Edelbrock 1407 on a 383 stroker with a mild cam. Smoothest idle is at 1800 to 2000 rmp, but that seems too high. If I try to lower the idle, it becomes eratic. Timing is about 18* advanced. Any help from anyone with a lot of carb know how is greatly appreciated.