I am going based just on what you posted because it could be other things besided your carb but since you are focused on your carb, please note that your Edelbrock has step up springs that can be tuned, and also you can mess with the rods and jets to tune it for your altitude and application. I don't know the altitude in Lodi but you might want to find out.
Also, click on this link and see if this explains a little more about the step up springs: http://ramchargercentral.com/boards/index.php?board=33;action=display;threadid=35776
Mac
Also, click on this link and see if this explains a little more about the step up springs: http://ramchargercentral.com/boards/index.php?board=33;action=display;threadid=35776
Mac