The Edelbrock Performer #2101 will accept a spread bore such as the Quadrajet, any of the Edelbrock carbs, or just about all of the square bore carbs. E-Bay motors has several 2101's, new and used. I would use that manifold with your current Edelbrock carb, it'll bolt right on with no modifications. I'm not sure if a factory Chevrolet manifold will accept your carburetor without the use of an adapter-and that is considered a band-aid and will not give the best all-around results. Maybe carbking has some insight for your set-up. The carb you are now running might be too big(probably) but should be able to tune it enough to make improvements, jets, needles, and springs are readily available for the Edelbrock carbs.
