How to install a specific carburetor?

Converting my truck from efi down to an old school carb and distributor  setup. It's  a 262 vortec 90 degrees and I can't afford aftermarket  parts. $400 for intake manifold alone is more than my meager disability income can swing.

The problem is the new carb didn't have  instructions or markings of any kind.

Model  IWQT1J according to the eBay ad, but been unable to find any datasheets or anything.

I just need to know what all these ports are for. There's  so many on this thing!

Question is, how do I connect this to an engine it was not meant for?

I don't  want to hear "can't" because can't never accomplished anything!!