Extracting maximum torque and horsepower from engines is an art as well as a science. David Vizard is an engineer and more aptly an engine building artist who g

The photos in this edition are black and white. Acclaimed automotive technical writer David Vizard examines the finer points of carburetors and intake manifolds

Renowned engine builder and technical writer David Vizard turns his attention to extracting serious horsepower from small-block Chevy engines while doing it on

Honda performance enthusiasts all have one basic question when it comes to making their cars faster: "What parts work, and what parts don't?" The only way to an

Porting heads is an art and science. It takes a craftsman's touch to shape the surfaces of the head for the optimal flow characteristics and the best performanc