The moment of truth has arrived. Project Mustang's blueprinted 289 engine is finished and the dyno runs have been successfully completed. All the careful preparation and machine work by Valley Head ...

Ever since it was first introduced in 1963, the 289 High-Performance V-8 has been the subject of myth, legend, and folklore. Enthusiasts get fired up over the 271hp Hi-Po due to its ...

Form and Function - A Look at Intake Manifold Design: Intake manifolds play a huge part of power production, here’s some of the hows and whys Internal combustion engines are fairly simply machines.

A K&N cold-air intake can be worth adding to your vehicle, and it may provide moderate horsepower gains if you install it ...

In most tests on engines up to 6,500 rpm, a modern high-rise dual-plane intake like this Chevrolet Performance example on a Chevy 350 generates the best overall average torque and power numbers ...