Chevrolet Repair Questions? Ask a Mechanic for Answers ASAP
Hi, glad to be of help. If the rods are installed correctly, you may just need a simple adjustment. Here are some links with pictures & video to show you how & what to do.
How to rebuild and adjust a Quadrajet
Secondary adjustment video
Can you send me a picture of your carb showing the choke side?
Let me know if this is a california or federal vehicle.
As far as idle mixture adjustment, attach a vacuum guage to manifold vacuum and adjust mixture screws equally to highest and best vacuum reading. This method superceeds any specs you may find and will give you the best setting for both mileage and performance.
Here's a couple good links on Quadrajet information:
Specs & Tips
Manual with specs for your carb Price: $6.95