Since the days of relieving flathead Fords, we've known about the advantage of porting. Grind those critical passages with the right touch, and airflow through the engine improves-and with more air ...

Before crazy trucks took over the market, the virtually identical turbocharged GMC Syclone pickup truck destroyed the idea that sports cars had to be non-crazy. The GMC gave trucks and SUVs ...

In most tests on engines up to 6,500 rpm, a modern high-rise dual-plane intake like this Chevrolet Performance example on a Chevy 350 generates the best overall average torque and power numbers ...