How hot does the intake manifold get under normal operating circumstances?

Under normal operating conditions, the intake manifold temperature can range from about 140°F to 200°F (60°C to 93°C). However, this temperature can vary based on factors such as engine load, ambient temperature, and the specific design of the engine. Additionally, the temperature may increase during high-performance driving or heavy acceleration. Maintaining appropriate intake manifold temperatures is crucial for optimal engine performance and efficiency.