Rochester 2GC carb

[zy5 guy]

Thanks for the replies. I currently do not know what the timing is set at, I'll have to borrow a timing light to check that. The EGR has not been hooked up since this carb was installed, and when I was running an Edelbrock intake before it did not have an EGR either. It has never ran right since it has been installed though so I'm going to try to hook it up to see if there is any difference or not. I believe I do have a schematic of the vacuum hose routing in the shop manual. I would not be surprised if there is carbon buildup, and I'm going to pull a few plugs to see what they look like and change if needed. The vac. advance on the distributor is hooked up to the right front of the carb at the base (right front if you're sitting in the driver seat), and is visible in the picture. Again I will check to see if I have the proper routing. When I was doing some research last night one of the things that came up was the power valve, specifically the rod that is mounted in the air horn. I did not check to see if it moved freely, but I believe it should move up and down slightly. Again thanks for all of the ideas.