It is a square bore mounting and your's is a spread bore pattern. Most people swap the manifold out also.
Simplest is to put the Edelbrock intake on OR go to a Holley GM style spread bore carb.
http://www.summitracing.com/parts/hly-0-80555c
You could get an adapter plate from Summit Racing as a simple solution.
You can connect the choke tube to the Holley. Theoretically it warms up faster with it but I think it is redundant.
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