I would run the edlebrock. You don't see many of them around. I don't know much about the Zenith carbs except to say that those who do rave about them. Charlie Baker (the late 12 Port Charlie - Vintage Design and Development) and I talked about them once in a while but I was never able to find a decent reasonably priced matched pair here on the east coast and the carter YFs were easier to find and cheaper to use. Then, Tom Langdon turned me on to using the pinto carbs and truth be told, they ran so good that I never looked back. I am sure someone with knowledge will come along here and walk you through the use of a Zeneith, at least I hope so as I would love to learn a little more about them myself. On the other hand, I would imagine they are still somewhat scarce.
