I think it depends on what you are planning to run. Went back to some of those threads and it appears the linked manifold above would work if you don't plan to run AC?
For certain an Edelbrock Air Gap Magunm 7577 would work in all cases.
You can look for an MP M1 intake with the right setup, too. Unfortunately, they sold them in a couple of different setups and it isn't enough to just say "M1". Even the part number stayed the same while the thermostat moved around. Pretty sure they had both a dual and single plane intake that worked.
Here is one that would work for you if you can find one like it.
If you wanted to read up on the options, here is a thread to get you started: