I needed to call AFR boss Rick Sperling to give him the great results I had just seen with a pair of his company's small-block Chevy heads on a 350. In a way, I was just bragging, because our ...

Big-block engines sit at the heart of some of the most iconic American performance cars and trucks, yet the term is often used loosely, as if it were just a synonym for “big horsepower.” In reality, a ...