The idle air control valve (IACV) is a device attached to the throttle body that helps keep the engine of a vehicle running without throttle input, such as when the car is idling in traffic or parked ...

No Pontiac mill was ever designed to leave the factory with an excessive idle speed. Rather to the contrary, it was meant to idle very slowly. The hallmark of a refined and well-tuned engine is a low ...

It's a big day. You've finally installed that lumpy cam in your big-block street-stormer, and you're ready for the testdrive. The cam's all broken in, the timing and ...