Automakers have long touted the benefits of fuel injection, claiming increased efficiency and power. But as more cars have the system installed (around 73% in 2023), more and more consumers are ...

HOT ROD’s archives are chock-full of brilliant tech reports that truly are timeless. This one, drafted by Jim McFarland for our February 1972 issue, provides an extensive look at how important airflow ...

Most aspects of a cylinder head are relatively straightforward and easily grasped. Valve size, deck thickness and combustion chamber volume are often topics of discussion and qualify the design's ...