There's an old saying we remember that goes something like, "Horsepower sells cars, but torque wins races." Everyone brags about their humongous horsepower numbers, but when it comes to getting ...

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 ...