In the last six months or so, we've been upgrading a pair of small-block V-8s-a Chevy and a Ford-by starting with stock crate engines, adding an assortment of aftermarket goodies, and then testing the ...

The debate over the optimum rocker arm ratio to use has dragged on probably since the invention of the pushrod V-8. Even though Chevrolet made the decision easy for us when it engineered the original ...

The performance world is full of good tuning ideas. One place that is often overlooked in the search for more power is the exhaust system. For decades, knowledgeable drag racers have been using header ...