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.
These reactions are called, retracing, healing crises, flare ups and healing reactions. The terms are used interchangeably in this article. Such reactions occur during the course of many types of natural therapies. We will confine our discussion to reactions that occur due to a mineral balancing program.