I didn't want to hijack the other thread.  Here's the info i was given by someone on another site about converting from TBI to carb.  Pretty thorough i thought...

Sooner or later, everyone tires of that flippin' crossfire. I wasn't sure what to do for a long time. I looked into crate motors, and priced everything out. When it was all said and done you're looking at about $6000-$7000, with parts and labour, plus most crate engines don't come with accessories (alternator, water pump, starter).

I finally realized I wasn't too interested in tire-shredding power, I just wanted something reliable. Since I had the motor rebuilt a few years back, it was a no brainer for me to just switch over, and like you, I had a million concerns, and a million questions.

Finally a friend of mine said let's do it, so we did. He is excellent with GM small blocks. Please keep in mind that it wasn't cheap to do, and there was a list of about 40 items that had to be purchased.....but it was about $4500 cheaper than buying a crate motor. I spent about $1500 for parts only, the labour was free, because a friend of mine did it for me (we just switched for some parts/favours) The first thing I had to do was choose a new carbuarator, and a new intake manifold.

I chose both an Edelbrock carb (Part # EDL-1406) , and Intake mainfold (Part # EDL-2101). You will also need intake manifold gaskets. The carb comes with gaskets. Next on the list was a fuel pressure regulator, and a fuel pressure gauge. You need a regulator because you are running an in-tank electric fuel pump, which runs 30-40 PSI, a carb uses 7-9 PSI, so you will need regulator to control the proper amount of fuel delivery, otherwise you'll have gas spitting out of the carb....not a good thing.

I also purchased a brand new chrome air cleaner. I also purchased a new thermostat (cheap insurance).

You will also need about 8 feet of fuel hose, and several bypass plugs, and clamps. Another concern is that you will not be able to use the existing alternator bracket, because they differ between carb and fuel injection, but you can get one used, or a new chrome one like I did from Canadian Tire (approx. $30).

That's the thing with converting, you need many little things, but just a few big things. I also chose to buy new chrome valve covers and gaskets to spruce up the engine bay:) I also bought a new chrome oil breather, to compliment the valve covers. If you go with an Edelbrock carb (recommended), you will need a fuel relocation line. You can get one from edelbrock for about $60 (like I did), or get a Mr.Gasket one for about $25 (get this one).

it is a good idea to buy a new thermostat housing, or "water neck", with a gasket just to ensure a leak free bolt on.

You will also need a throttle relocation bracket. Because the carb and crossfire throttle has a different placement, you will need one from another trans am/camaro with a carb set-up. Along with the bracket, you will need a throttle return spring so the pedal returns to normal position after it is released.

There is quite a bit of bypassing, and plugging that is necessary to successfully complete the install. I did remove all the AC equipment, and heating components. All i wanted was a nice looking and running engine, no extras.

...now if i knew how to do all the work i'd be alright...and i imagine i could get away with some cheaper parts, to at least get me going for the time being.  I'm not even sure if my fuel pump in the gas tank is working properly so i may have to go with a regular fuel pump.  Anyway this is the info i was given.