Most of the procedures apply to any Type 4 engine in a 72-79 bus. If you don't see particular parts then you've got carbs. I've tagged the carb specific photos. There might be slight differences, such as the way the heater booster is wired but you'll get the general idea.
All the reactions of photosynthesis that are not directly dependent upon light are known as the dark reactions. The dark reactions occur whether there is light present or not. The dark reactions occur in the part of the chloroplast known as the stroma.
The process of photosynthesis is divided into two main parts. The first part is called the light dependent reaction. This reaction happens when the light energy is captured and pushed into a chemical called ATP. The second part of the process happens when the ATP is used to make glucose (the Calvin Cycle). That second part is called the light independent reaction.