Rochester Ramjet

[2] In addition to the Corvette, the system was offered on Chevrolet and Pontiac passenger cars; each of which used a slightly different configuration with respect to the air cleaner and other components.

The air meter measures airflow into the engine and manages thermostatic warmup enrichment, fuel shutoff on overrun, and idle settings.

[3] Although the Ramjet system allowed a significant increase in engine performance, its innovative design had several inherent issues that affected reliability and tuning.

On the early systems (1957 through 1961), one of these problems affected the cold-start fuel enrichment: it would tend to discretely toggle on or off, rather than using a gradual series of steps.

Additionally, the vapor pressure of modern pump gasoline may not be appropriate to prevent percolation in the Ramjet fuel distribution spider.