Question for Holley carb gurus

dart_68 said
You're good! Hit it on the nose.

The problem I was having was running pig rich at idle and a tip in bog. I couldn't find a cure for either. Kept fouling the plugs, black smoke out the back...you know the story.

I adjusted the secondaries but now I wonder if it'll idle too high. I only opened them up enough to expose just a square of the transfer slot. I believe the carb model is a 3310. It's a VS 750 cfm.

What is the idle speed/rpm now?
I mean in park and then idle while in gear/foot brake.
If it is too high..Close the primary some now.

Instead of square on the secondary, you may want less..just barely cracked open even.
You just want to make sure you can get the primary to be a sensitive to the idle mix screws that it will die if you turn them in all the way or too much.