Just had my Holley rebuilt (750 cfm on top of a 396). I installed it last night but its running rough at idle. Does ok at higher rpms. I'm wondering if I've got it hooked up right. The vaccuum outlet on the back is hooked up to the driver valve cover intake. I think the electric choke is working. It just sounds like its laboring to idle and I have to rev it to about 1000 rpms just to stay running. Any sites or references to go to so I can learn more about adjusting carbs? thanks. :confused:

Here's one site that I found helpful:

http://www.gnetworks.com/v4files/barrygrant/Happy%20Carburetion.pdf