Carb Manuals - I gave the wrong address for carb manuals. They did not have one listed for the monojet but here is other info on Rochesters.
http://www.newagemetal.com/pages/Chevrolet/index.html
http://www.newagemetal.com/pages/Chevrolet/71/index.htm
http://www.oldcarmanualproject.com/manuals/Carbs/index.html
The files are just JPEG scans of tech manuals and are slow to load on dial up. Sometimes you have to look around on that site because they have several URLs but they have lots of good info.

250 Integrated Head / 1981 C-10 Pick up.