Intake Manifold Questions

....That intake may not fit properly because as said above, an earlier V8 intake. It has odd bolt angles. I did t run the numbers but it does look like an early 273.............

Read and heed. Rumble usually knows his stuff. The early 273 mating surfaces at the heads and intake were DIFFERENT from later models. You cannot put an early intake on later heads and vise versa.

As a "360 degree" or single plane intake, that would not be the best choice. I would spend some time on your local Craigslist. I've got two Edelbrock manifolds I bought off CL for about 89 bucks, one is a Performer which is a great manifold.